I can answer your questions.
Reiku-Razengan must be some new member, I was surprised as well when I got a PM from him/her.
I was also surprised Exx came in 3rd, I personally loved his and I thought he deserved 1st or 2nd. But the other judges thought otherwise.
Halo didn't enter this contest, not sure why. I never received an entry from him.
And good luck with the next contest. I still need to come up with a new theme, lol.