I was wrong about the spawn rooms. I see you have metal doors. That's good. However, make them move faster so you don't get caught on them.
Here are some things I found about your map.
The top of the map, over the point, is useless. You can't use it to shoot at people on the point, and there's nothing else up there, so there is no reason to go there. Players won't fight up there because it isn't on the way to the point, and the spawn room is so close that they can just go to the spawn room to heal or get ammo.
Something is wrong with the ceiling.
Your rooms are way too large and open. There is no cover anywhere from long range classes. Pyros and scouts will be impossible to play on this map. When you don't have large open rooms, you have long narrow hallways, which are also good for long range classes.
Another thing about your large rooms is you have very high ramps. Generally you do not want high ramps because the higher the player is, the more power they have on players below them and the more damage they take from falling. Keep players close together.
Also, when you make areas of different height, make sure there are plenty of ways between them. Usually you have 1 ramp for each team. Try to add 1 or 2 neutral ramps or more. Make them shorter, both in length and height.
This room is way too dark in the corners. Add more lights. Also, why is there an anvil here? When you place props, you should think about why they are there. If you are putting down tires, is there a truck or tire tracks nearby? If you put down train wheels, are there trains or tracks nearby?
There's no reason to go to the bottom area either, unless you get knocked down there. If you do, you take a lot of fall damage and then it takes quite a long time to get back to the main room. Make the walk time shorter and more interesting with more opportunities to meet players in a setting that isn't a narrow hallway.
Finally, put your func_respawnroomvisualizer over the metal door instead of in empty doorways. This will make your rooms a bit more fluid.
You don't have to do this all on your first map. You've already done a lot more than most first time mappers. Just remember these tips for your next map.