Nature study in guache

I thought it was about time to post another nature sketch. This is in guache and it is from an area nearby. I would love to draw this again in low evening or morning light, which enhances all the colors and makes the shadows a lot more striking. Of course evening or morning lighting changes quickly, so it forces you to work fast. Not sure whats going on with the sky and colors could be more vibrant. Hope to post more of these soon.