i... am... a... tree master. :)
i LOVE doing trees - it's my favorite part of my paintings!
trees...
*You can use a small piece of posterboard (or index card), bent in half, and pour your tree on.
*Or you can use a palette knife (guitar pic, piece of hard posterboard, etc) and carve the tree into the existing wet paint. Great for white trees on dark background.
*Or you can use a palette knife with a little paint on it and draw the tree on with the knife.
*Or you can use a sponge brush and draw your trees on that way. Just make sure you use a small sponge brush so that you have more control over where your tree goes. :)
Once you get the hang of it you'll probably end up mixing a few of these techniques all at the same time!
My preferred way is to pour them on. Start with a small piece of posterboard bent in half. Spray your brown or black or whatever into the bent piece of posterboard, THEN start at the base of where you want the tree and pour the paint from your bent piece of posterboard onto the painting. GO SLOW. And control where you want the tree base and limbs to go. Once you're happy with it, go back in with a palette knife and carve some highlights into the tree that you just made. Then I use part of a sea sponge and dab on the foliage in layers.
Tell you what - you tell me which way you'd like to try and I can show you a video that is doing it! lol