well..
I know that this is a WIP, so here's what I think would work best for it in it's final version:
1. Line up the question/answer slots in the same place every question. It's odd to have the answer squares moving all over the place from question to question.
2. Have it tell you if you got it right or wrong each question (it should go on anyway though). Alternatively, it should provide a score at the end and tell you which ones you got wrong.
3. At the end, depending on how much you got right/wrong, it can give you different images and friendship titles (like "True Friend" for all right or "to the moon!" for all wrong or something). It can also give you different pictures maybe?
4. Add little images of the ponies in there. It'll spruce it up a bit more.
5. Add some not-distracting but MLP related music. It should be softer since this is a quiz.
6. Fix the grammar. Have someone who's good at grammar/spelling beta read your Q&A before you finish this.
7. SFX. Maybe some noises that happen when you mouse over a button, click it, get it right or wrong..
8. Fix the color scheme. Make it more show-related.. a black BG seems out of place for this show. Maybe find a background from MLP, like of Ponyville, and use that?
It's a good idea, so good luck with this. If you need any help with questions, you can PM me and I'll give you some. :D