Here are my ideas so far:
phyllo pies of some sort
vegan mini quiches (is that possible?)
spring rolls (are they fancy enough?)
flatbreads of some sort, with different toppings
raspberry chocolate mousse
So I clearly need more ideas, and actual recipes. I am good at making comfort foods, but I am terrible with fancy foods, and finger foods just completely bewilder me. Any ideas would be greatly appreciated, especially if they can be prepared a day in advance or so, so that I can just put together a few things the day of and not be completely frazzled as the guests arrive!