I made this tinkerbell for a cake, but she's kind of a fatty. Is it good enough for a paying client's cake? Be gentle but honest. Thanks!

http://cakecentral.com/gallery/2009977

IMO, yes she is a little bit on the chubby side.
Think i would make her half the size she is - weight wise i mean.



Bluehue

I would say yes except I would change the legs, the amount of paste in one leg would make two lol Her new nickname would be 'Thunder Thighs' lol.

Otherwise great

Lol thnx guys. It's so hard for me to sculpt, since any medium I try dries too quickly! I cane seem to make a good candy or chocolate clay, like the kind you see them working with on cake boss. It looks like the stuf they sculpt with doesn't dry super fast. Any suggestions?

I use tylose (or gumtex) mixed with regular fondant for characters or anything I need time to work on. It dries within 48 hrs but it won't dry out as you're working. You avoid the cracks by using this as well. The modelling choc recipe on here also works well, but is not as good for detail.
Sorry can't comment on the photo because it's no longer there...