Since your contest is in judging mode, only the 1st ranked designer may submit new designs during this time. So, in order to see revisions from a specific designer, you simply put one of his/her designs in the 1st place (even if temporarily).
On the other hand, please let me know what type of fonts would you like to see: handwritten, serifs font, sans serifs etc.
It would be very helpful if you could indicate me examples you like from the web.
All the best.