Still thinking about colour, I did think for those who have done a lot of colour mixing and who may want more of a challenge looking at how to paint metallic objects may be interesting, I gave it a go this morning, trying to paint a gold ring and it was a disaster! so back to the drawing (painting ) board for me! meanwhile found this, there are lots of very generous people online sharing how to draw and paint do use them for when your teacher fails. This is oil paint which gives us a lot of time to blend whereas if you use acrylic of course it dries quickly so the same blending isn't possible unless you work quickly, it would work well I think in pastel.

Two things to note:1. you don't need metallic paint! it is just colours and tones. 2. note how much darkness there is, when he first puts the dark colour I thought that doesn't look like gold/brass, but be patient, in fact in shiny metal only a small area is light and your brain think s it is seeing lots of light shiny stuff.
of course this bloke is good, and makes it look easy, don't be hard on yourself if it doesn't look brilliant first time. but give it a go.

https://www.google.com/search?q=how+to+paint+gold&rlz=1C1RFPM_en-gbGB848GB849&oq=how+to+paint+gold&aqs=chrome..69i57j0l7.6079j0j7&sourceid=chrome&ie=UTF-8&fbclid=IwAR3pGvMQDUNihfYlH1CizvJ7tRGPXb-kTZX3WPoXRX9DFim44MWa1__rnCs#kpvalbx=_UEGUXpjJJ42_gQbb8qrAAw69

Gable ends can be a challenge, there are angles the eye doesn't pick up, you have to know they are there. If this isn't clear do let me know, there will be more!

DRAW ANYTHING JUST DRAW. 

One of 

the 

best 

ways to improve is repetition, you don't get fit by doing an exercise once. But thoughtful repetition i.e. can I improve, so here is version one and version two, I think version two is a slight improvement. 

A few more green photo's  Remember it is not necessary to match exactly but to try and get a range of greens which work in a painting, and which you personally like. Also a painting by Adrian Berg, I like his style, playful, recognisable but not photographic, kind of jolly.

COLOUR: MIXING AND MODIFYING GREEN

Green seems to be a challenge to many, me inlcuded, maybe because it is such a natural colour and paint is by definition artificial, so it is easy to try and paint a landscape and get an artificial looking result.

Of course there is no such thing as a wrong colour but for the kind of painting you are trying to achieve you need to get the colour to fit. Like in music there are no wrong notes on an instrument but you proabably want to play in key and in tune.
Some artists like very bright vivid colours, David Hockney some of Van Gogh, and many others.

If you compare these with older art you can see a big  difference, in the older art the grees is much less green, more subdued.
 Willelm Roleof
Even the Impressionists were fairly gentle in their use of green, here's Monet's famous poppy field. 

You will find a lot of contemporary artists like to keep their greens under control but it is ok to go a bit wild and think 'I want my greens to be vibrant'. It is good to get to know the kind of colours you like, you don't have to paint like everyone else.

Anyway it is good to know what greens you have, what they look like and what range of greens they mix.
While I like to think we can use all our colours it is ok to  find what you like and stick to it, there are lots of artists who never touch viridian or emerald finding them far too vivid. And for some artsits a noaaow range of light dark and middle green is sufficient.
Some never use ready made greens at all prefering to mix them from blues and yellows.

Essentially you need a starting green, a light and pale green,then a light and bright, deeper greens, warm green, autumnal greens, cool green, dark greens, and grey-greens.
I've started with Sap green and put out what I want to modify it with: lighter side: Lemon yellow, Cadmium Yellow, Raw Sienna (yellow ochre will do a similar job) Cadmium Orange, Alizarin Crimson, on the other side, Ultramarine, Burnt Umber, Black (Payne's grey will give an even stronger dark green)

DO MAKE NOTES AS YOU MIX, I HAVE ALSO PUT THE COLOURS on neat WHICH  I AM MIXING WITH

You will see I haven't attempted to match the colours but to get the kind of colours I see, lighter and paler in the background, lighter and brighter in the foreground, pale blue-greens for horizon trees. Very dark greens for big trees, browner greens for row of trees and shrubs.

Don't worry about matching my colours (I think I could do better!) but try and see from what you can mix, what suits the different areas.

more colour

A few small studies in colour first making a range of yellows mixing lemon yellow with very small amounts of crimson and blue and white, (this is acrylic), but trying to keep it within the range of recognisable yellow. then the same with red, modifying but trying to keep it looking red. Yellow has a narrow range add just a tiny bit much blue and it no longer looks yellow, same with adding too much red so it is an exercise in subtle thoughtful mixing. 

colour modifying.

This post is about modifying colour, it is colour mixing, but carefully, so that you keep the colour still looking blue, using blue, I was using acrylic, and used cyan crimson and lemon yellow, and white. The idea is to modify the blue with small amounts of the other colours but keeping within the range of blue. so a little bit of red, , then same with some white, then a little bit of lemon, then same with white, then a little bit of red and lemon, and again same with a white. 

Finally I tried to mix as dark as I could, obviously no white this time mostly blue and red with a little lemon, too much of the latter would lighten it, you ought to be able to get something quite dark. Then add white to see if you have got a grey.

The point of this is to mix colours in a controlled manner making small but visible modifications. Colour mixing step by step.