Looking great man!
Just some advice, when it comes to old nostalgic maps like crackhouse it's important to not change too much. Change too many textures, or adjust the brushes too much from the original and it looses that feeling that players want from a map like crackhouse. If they wanted a well balanced map they would be on dust 2.
Sometimes it's better to edit the original map to keep the spacing and feeling the same. Remaking the map from scratch will take significantly more time, if you're committed I highly suggest using the original map as a reference so that it retains the same vibes.
It's an old map, on an old server, in an old game. Any new map is gonna get backlash, but don't let it discourage you.
Good luck!