Took the first trees I made back apart today, I had made them several months ago but after rereading the forum and looking hard at them again. All I could see was brcccoli! so they were pulled clean and will start on another batch at some point.
Grey and brown to start. If funds allow, a light spray of black to the underside of the branches can give good definition.
Make sure you check out the pound shops for paint, scenery doesn't need the expensive stuff. Aim to spend around a quid per can, then you can buy more colours without breaking the bank, and experiment to find what works for you