I've been playing 1v1 games on OSPDM8 for a long time and like the map quite a bit, so it was an interesting surprise to find this topic.
On OSPDM8 there's a ledge here - where the scrosshair is pointing - which can be used to jump across to the right or back, i.e. without touching the ground floor.
Please put it back.
Also, in OSPDM8, it's possible to fall down there safely (without falling damage) by landing on a ledge on the wall where the crosshair is pointing. I would like this back aswell. I use this in matches all the time, and I think I would get annoyed with it not being there.
As for the visuals in and of themselves, some things are improved over the original, some things were better in the first place (which isn't to mean that they couldn't be improved on

). Overall, then, the visuals are interesting only because they are new, rather than inherently good. Well, not exactly; it is nice to have a bit more detail, for example on the teleporter.
I was glad to see you decided to improve the look of the map, but disappointed to find that you have changed the geometry.
While the lighting is more colourful, some areas of shadow are particularly dark.