I've read around 50 (wow! I should've been working on mine). Half I've requested and the rest people just send to me. There were about 4 that were spectacular esp. in terms of writing ability. Most common themes: Trip abroad, depression, and small town. I guess it doesn't matter as long as you write well.
I wish mine was have as good as yours, Maggs.
Maggs, yours does sound very interesting.