The snow is better but PLEASE reduce the fog, or change the max thickness (or whatever it is) to something lower that 1. The only thing that will be remembered from this map is that it tried to be a copy of cs_insertion. To make a good map you have to be somewhat original. Being original is difficult with defuse maps but with hostage maps it's easier because there are less hostage maps overall. Also, i have not played any matches on this map but it will probably be luck and aim sided. People are just lurking in the fog hoping to find someone and if they do the guy with better aim or the one who is behind the other wins. You can't really have any tactics on a map where skill wins. Compare that to cs_agency (and all competitive de_ maps except de_dust2 where everyone knows every tactic.) where you can have coordinated pushes to different chokepoints of the map so even 5 not so good players with communication can beat 5 good players who have no communication. This map has so much potential but it's wasted because you won't try anything new. Also, here's a video comparing your fog and my edited fog: https://youtu.be/IVexYnvVBS8
Edit: I saw from the video that my fog is too green (still a huge improvement) so if you will change it play around with it a little more to get it perfect.