Sketch for "Prairie Rabbits"

I've been working on a pitch and have been keeping it mostly under wraps.  Then I hit a period of lack of inspiration on it and just recently picked it back up.  I'm trying to do some concept art for it, but finding it really hard to draw trains and nature and get the color palette that I want.  So here's a crappy first pass.

I'm not happy with it, but it's something for now.  I'm trying to get a better handle on scale and scope and color, and pushing my style further.  Hopefully the next pass will get me closer to what I want it to be.