Please give me some tips to make this froggy worker more design

Artwork Works in Progress
1

Froggy worker ano mas maganda?

Front Without Node
[IMG]http://img202.imageshack.us/img202/1125/frontwithout.jpg

front With node
http://img820.imageshack.us/img820/8539/frontwno.jpg

Side with node
http://img135.imageshack.us/img135/6619/withnodes.jpg

Side Without node
http://img266.imageshack.us/img266/5377/withoutnodes.jpg

any suggestion how to add some design and effect? i am going to create Animation on this model