After submitting, user should go to user page with notification
I think that once a user is done submitting/naming/ordering his
media, he doesn't go to a special "Success" page, but rather back
to his user page where his latest images are shown. Or maybe the
gallery he posted those images in?
Either way it's probably a good thing if the user can see the new
media, as a clear sign that it worked and that it's online.
Preferably with an obvious notification that says "Submissions
successful! [Upload more media]" or something similar.