Tree - Kew Gardens

I took a good few pictures of trees when we were in Kew Gardens. I love the strong shapes, the rich greens - trees is something I'd like to be able to paint better. So, let's practice (I've temporarily set aside my current acrylics project - maybe I bit more than I can chew, and I have a bit of a mental block about it, but I just don't know what my next step should be.)

Here is one of my favourite trees, in watercolour (I'll take another photo tomorrow, as this one is a bit blurred):