Signature Cut Off

I'm trying to make a forum and I got most of it set up but what's bugging me is that part of the signatures get off. Like this one here. https://i.servimg.com/u/f10/14/40/25/39/sigpro10.jpg
and the picture in the signature is suppose to look like this. https://i.servimg.com/u/f10/14/40/25/39/c_b10.jpg
Is there something I can do to fix that?

(I have no idea if I put this in the right section)

This looks like your signature picture is larger than the size limit set up in your profile.

Check the picture size and then set your profile picture size to match it or, if it is a bit large, reduce your picture size to suit your profile setting.

Edit: Just checked.....there is no size limit for signature pictures in the Profile. The limit is for Avatar size.
Try making your picture smaller and see if that will solve your problem.