It looks awesome. That's a lot of nice work.

I have one suggestion when tracing buildings: use where the buildings hit the ground for your points rather than the roof lines. A lot of imagery is shot at an angle rather than straight down and the base points will be more accurate than the roof points. You can really see the difference on those "L" shaped building on the east side of campus.

ground
+----+
|\wall\
| +----+
+ |roof|
\| |
+----+

Cheers,

-- Lee