Man, i really dont know how you do the buildings but, in this video you can clearly see the diference between DimitriX Buildings and your buildings.
Its not that im always Bitching, is that i love the Quality in Mods, i know maybe this is your first Mod.Really if it was my first Mod i wouldnt make a TC.
1-The Map misses a whole Organization, you put buildings in a so Random way, it looks messed up, it gives an empty feel.
2-I noticed in some of those Sketchup Buildings no-valid Faces, by this i mean that are Planed with no Double-Face Property, you see them by one side and on the other is gone.
3-The Alpha textures have no Alpha channel in .TXD file, since they come all white.
4-Try having a regular Brightness level in COL'S, CJ gets Uber Lightned when on Streets,and once he is inside one block it gets damn fking Dark, i would recommend you to keep the level of brightness not so high but not so dark in every mesh you put inside the map so 2DFX lightning effects do their Job.
5-Some Buildings have missing COL'S, thats maybe couse the building is to big and COL editor has a limit of Area to Col with Kam's Extracted Col files, use Steve-M col Maker or Deniska One and you wont have those lil Buggies.
Really, the real Quality of this Mod is only on the first part, all the rest of the city looks dark and misses alot of life.
But continue it, this is not a post to say you "f*ck OFF with this mod it wont have success, all i say is to put it all the effort and Quality you can"