Not a whole lot to critique. I like it, good speed paint and great composition. The main problem I see with this piece is it just doesn't appear finished. Make sure you render your focal point(s). From my point of view, the big mushroom is the focal point, and it is also closer to the audience so render that well. The leaves on my bottom left look too patternized, just make sure to watch that. In nature, you do not get leaves overly patternized.