So this may have taken me a bit longer to finish than anticipated and I didn't get to include ALL the suggested content but most of it's there
Ponies were the number 1 request so I drew a lot of ponies
EDIT: The hidden content includes
1. Matt my OC
2. Rhythm and Rhyme
4. The winter princess (my custom)
6. Yuuri and ...
7. Wolfram from Kyo Kara Maoh!
8. Firefly from the 80's tv movie