My honest impressions:
Your map is unplayable in standard TF2. While some of the scaling seems ok aesthetically, the scaling is terrible gameplay-wise. There is too much tall playable area, and many of the entrances and exits into each area are tight and narrow and limit your options, while each area is vast and open, making it difficult to cross without being an easy target for enemy snipers. There are too many side routes, too many levels, and the map's layout is not intuitive at all.
I realize that you must have spent ages making this map to the point where it is now, but don't feel bad about abandoning it if that's what it comes to. A lot of the geometry certainly looks cool, and might be fun to play in in some other game, but I don't think it will work for tf2.