In the oven the bases on both broke, so I managed to have a puddle of baked stuff on the outside of the flan ring rather than in it. This was a big deal with the pear tart, as it was basically islands of pears with very little surrounding them. On the other hand, the walnut one wasn't so bad, you couldn't really taste the punchy inside 'gravy' as it had all leaked out. Instead it was sort of like a giant walnut cookie, that ended up being pretty tasty.
I asked my teacher what I'd done, and he suggested that I hadn't pulled the dough in enough on the edges of the base to create a 90 degree angle. This basically means that I had a really weak base and so it broke aka exploded. So I will try it again this week some time, probably with different filling and see how I fair.
I do love tarts! Having better luck this week with rolling the dough. Pate sucree can be a bit of a bitch. Word.