In principle, the level is very good. I went through your map and was impressed. As advised by the above-mentioned people, it would be necessary to work out too large areas of the map, add characteristic enemies and bother with decorative components. By the way, the vanilla game has a lot of textures on the theme of skyscrapers; you can use them so that the houses on the map are not the same. The skybox is beautiful. Music in the subject.
I think that's it. what I said will be taken into account. Thanks.