absolutely!

Please take a look at my submission and the message I left there. Thanks.

Dear Project Holder
Pls provide your valuable feedback for my designs.
As you can understand no project can be successful without timely feedback & continuous interaction, thus we request you to provide your feedback.
Waiting for your feedback
Thank you

Hello! I just saw your contest, hope you are still accepting new entries. I'm working for your project, too. I'll submit as soon as possible. Thank you!

I would like to thank everyone for their submissions. I will let the competition run its course and give people who have been working on a design time to submit.
I think I have already decided on a winner from the current entries, so it feels wrong to encourage designers to keep making changes in response to feedback when I have all but made a decision.
People are still welcome to submit and if a design comes in that is better than what I have had already I will seriously consider it but designers will need to accept that I will not be giving any more feedback.
Thanks again