I don't know the full extend of the owner's mapping skills or knowledge. This is not meant to be something rude towards the person. This is simply meant to help the creator to improve the map.

For starters:
+ I like the new skybox. Makes the map not very bland and gives it a somewhat unique style.
+ I enjoy that some places weren't completely overdone or rather remade to a point where it no longer felt like big city (to some extend)
+ Interiors for some buildings. Neat!
+ Some placed looking better than the original map while also giving it a modern look.
+ The dump finally became something useful!
+ Some of the original easter eggs were kept. Good job!

However, there is more room for improvement:
- The new twin tower texture is bad. From a distance it looks good, however if you are very close, it not only looks low poly, but it also removes the best part of the original map : The lovely reflections. It was amazing watching the reflections of the map through the twin tower windows.
- Are there any cubemaps? It seems there is little to no reflections on the map. Probably for performance reasons.
- The factory near the bridge became a mini version of gm_construct. I am sorry but it looks very bad. You could remake that place into a new factory, a park or anything else.
- Some empty spaces in parts of the map in odd places. Probably leftovers or the mapper planning to add something there?
- The atmosphere gives the vibe like if Silent Hill was in New York. It's probably the fog density that gives it.
- The water canals became a river of sorts. I wish there were some openings that made it look like the water was travelling between points, giving it a more realistic look.
- Some rooftops don't have any sort of doors that point to the interior of the building. One example is the tall building where the helipad landing is. It doesn't really make much sense...But that's more of a nitpick of mine.
- Some various brushwork, texture alignment (especially the bridge) and other minor nitpicks.

Overall, the map somewhat lives to the "remastered" category and it gives a different view of how Bigcity could look like in someone else's point of view. Despite the issues mentioned above, the map is a solid 8.5/10. Just need a little bit more work to look amazing. Keep up the good work <3

As for the owner: If you need additional help/support, let me know and I can try to provide some, as long as I get free time.