Pros: This map just looks great! A lot of detail, great displacements, and many different walkways to go from. All accessible areas are marked and labeled correctly as much as possible. It looks to be balanced, as both owned points hold the "one inside, one outside" formula. The best TC map I know, and that includes Hydro.
Cons: The BLU points are definitely more clearly marked than the RED ones, although are obviously marked by cones, they may not be so obvious to others. The RED team also seems to have a little disadvantage when it comes to the final points. BLU has a heavy chokepoint, but RED's can normally be easily evaded by taking vents, unless you want soldiers and demomen risking their health to jump up there to do something about it. I also don't like the unfair advantage to those new to the map with the killing mechanisms. Although they are a neat touch, can be a little annoying. One example is the meat grinder at the BLU outside point, which I think only works when the RED team is defending their inner mine shaft. It's only bad when a BLU player kills themselves out of curiosity is all, lol The biggest one, and probably justifies the BLU upper area near their final point is the Rocket pitfall. Like I said, don't know if it's a neutralizer or not, but it could be without.
Improvements: I'd add stairs leading to the deck overlooking the final RED point, as for the BLU team, there is nowhere they cannot go besides RED spawn. I'd still go ahead and throw the yellow and black tap texture lining the cones to assure players that they are in the cap area. Maybe cover up the pitfall with glass or a metal door kinda enclosing around the rocket, but not crushing it, lol. Lastly, mark the area of BLU's final point a bit, probably the hardest to tell if you are on the point or not, although most people who play will normally stand on the circle to ensure being on it
Notes: Take my advice with a pinch of salt, as your map works fine without it. Oh yeah, and I like the craziest slope in the world, lol.
Keep up the good work. The map is amazing, and I'd love to see more of your work. :)