This is a Waxy Tree Frog (Pyllomedusa sauvagii) I drew one quickly at the zoo once: http://agartblog.blogspot.com/2009/12/zooing-with-marie.html
since it is obviously an awesome animal I felt it necessary to draw a more finished looking one.
I scanned it periodically as I made it. This way you can see how I did it and steal all my secrets.
Step 1: draw stuff.
Step 2: marker shading
Step 3: pencil crayon half
Step 4: pencil crayon the other half
Step 5: acrylic paint
Step 6: add a branch
I know... it's way too insightful for words.