I'm working on this drawing, I want to add
something to the drawing to give the picture more movement, I was thinking some kind of tree + leaves combo but I'm having trouble fitting them in there.
I feel like they're at the their minimum in terms of size/croppage, If I start making them any smaller or further away they'll start being unrecognizable.
Maybe the solution is just to rearrange a few branches? Or is it okay that the branches/wheels touch?
With trees:

Without trees:

The dimensions are fixed so I can't widen or lengthen.
Ideas? Feel free to draw over it. Other suggestions also welcome.