Nope, as long as the contest threads are still open (as in not locked up for voting) you can still join. The only real rule is that it needs to be a piece you completed in the same time frame as everyone else. As in, you can't have spent the last six months working on something and submit it like it was completed within the roughly 30 days allotted to the contest.

You are right in line with this contest so welcome and thanks for joining in. It's been a pretty light might as far as entries go so I for one appreciate it.

And have some Rep while I'm at it for joining us.

edit: Wow, I have a 21 point Rep whackin stick! Woot!!