It looks OK but I will make a couple suggestions.
I see you are using the brass hog rings. They open up real easy. I would add a few more as I see some pretty wide gaps between rings. If one opens up it will allow enough room for escape. You can get steel rings at
http://klubertanz.com/ They are much better and cheaper.
The other thing is your trap pan. I see you made it out of 1x2 cage wire. Animals will not like to step on it. Solid is much better. You could get by if you put something stiff over it, plywood, roofing shingle maybe even carpet. It probably (the trap pan) will not last though. I think you may have trouble with animals eating your trigger mechanism but you'll feel good enough about catching something that you won't mind fixing it.