Welcome, David
Great to have you join us, and you clearly have a lot of artistic talent. I've only had a quick look so far, but some of your pieces are great additions to the style library. The only thing is, as Icho and namida have pointed out, it's really important that you either keep pieces in your own styles, or else cooperate with the style author in adding to their style, to avoid the situation where another designer uses some of your pieces thinking they are official, distributes a level, and then someone else can't play the level because they don't have the pieces (as well as other considerations namida went through in the post Icho linked to above).
In that spirit, I'm looking through the additions to proxima_persia. As far as I can see, these are all the new pieces:
Objects:Button: Great idea to use the door-opening switch from
Prince of Persia as a button. I haven't made a button object before so I need to double-check that everything is done in the way I would prefer, but this can definitely be added to the style officially.
Entrance 2 / Exit 2: These are much better than the lazy single-frame rips! They should just replace the old entrance/exit rather than existing as separate objects.
Spikes 3 / Spikes 4: I'm wary of these because they are invisible until activated, and general NL convention is not to do that (all traps should have secondary animations). Also, if they are to exist, then authors using the tileset would have to agree that the floor holes would
only be used with the trap object -- unless the holes could become part of the object somehow? I need to think about this one.
Terrain:Spikes: These should
definitely not exist as terrain, because they already exist as a fire object (and a trap, though the trap version is distinct because the spikes start out retracted). Having some spikes be terrain (or in general, having terrain that looks like an object in the same style) is confusing to the player. I won't allow this to be part of my tileset, and I would
strongly urge that you don't use this tile at all, though I can't enforce that.
Steel 2-6: You've replaced the pieces with identically named but distinct pieces that represent different stages of the gate opening or closing. I don't mind these pieces existing, but they need distinct names so they won't overwrite the old pieces.