Love it! I'm always been a frog fan, and this little critter is just perfect! Great job using such a wonderful range of colors, and it's really effective that the part behind the branch is dark that its face and arms. I also like that while you have a range of greens and leaf shapes in the background, none of them are really overpowering, so the focus remains on the frog!
This is such a gorgeous piece of art! I really love the fact you used a lot of different shades of green here, and yet managed to make the frog leap out of the green background. I also really like your touch; the picture looks really soft and the contrasting colors bring it alive to the viewer. Those big red eyes capture the viewer the first thing they're seen, and that alone brings attention to this piece. Really well done here!
Wow! At first (as in looking @ thumbnail), thought it was a photo... so mad drawing/coloring skills you have there! The frog looks beautiful, and I liked how you got that pose- it looks really natural, and simple (although I fancy it took ages drawing it O.O mass admiration!)