footpaw redline?

Hi there! I was wondering if I could possibly get some advice/possibly a redline for the paws I'm working on currently.
I'm going for a big cartoony look, probably for a dog but I'm not 100% sure yet.

I pretty much like how it is, but another opinion would be really nice.

http://www.ezimba.com/work/140312C/ezimba19051095767100.jpg

http://www.ezimba.com/work/140312C/ezimba19051021062600.jpg

Thanks so much for looking!