That shows a lovely use of texture. My one comment would be that the trees seem a little small for the size of the stones in the creek. Also, they are the only really obvious repetition. A few different styles or sizes of tree, or even just rotating the image a little, would help a lot. Equally, a bit of shadow behind them would be useful for pulling them out of the background.

It's a great map. Any chance of a version without a grid for VTT use?