Thanks for the feedback! It's good to get other perspectives, as it's hard when I've been working on them for a while. And thanks for the suggestion about Norman's antler, Deb - I'd been wondering about that! I'll have a play with it. :)
Hehe, and I did have fun with the penguin. ;D I also considered making a bar penguin -
In case anyone's interested, here's the pics I was using for reference for my squirrel, although I'm sure you'd find better ones with Google. :P
BTW, the first squirrel does have four legs, it's just got one tucked up into its body. :P