Pros: Looks pretty good for a map of its quality. Setup pretty well, although I like the way point B is the most.
Cons: First thing you'll notice is the orange development wall on the sides of the BLU spawn doors. The second thing you'll notice is that there are a lot of visleaks, especially around A. The first one I noticed however, was the one on the ceiling in the BLU base outside the locked doors of setup. Along with more visleaks at B, I just think that path is a little long for BLU, which I would probably consider they push A before B, especially since the A tunnel to the intersection of the BLU spawn to the intersection is smaller. There are almost no Health Packs at A. THere's only one little one at the bottom of the bridge, and that's all. Point B needs boundary tape. I'd also consider widening it out to fit the entire circle (or octagon). Kinda helps that there is a guideline there so no one is standing there trying to cap nothing. You get to C, and in comparison to A and B, it's a bit of a disappointment. Doesn't look anywhere as good as the previous two, but you won't find any visleaks :P The stairs to the side of C just look weird floating there. Either add a railing or add some sort of support below them. One more thing I'd like to add. In Gravelpit, only select classes can get anywhere near their spawn area. In this map, any class can walk all the way up to their spawn room door. Move the noentry/nodraw up to the setup doors.
Improvements: See Cons.
Notes: It's not a bad map, but still needs work. You did a great job with it for 5 months, but you need to continue. I'd also suggest giving C a major makeover. Keep up the good work. :)