Yo, I've been following the development of this for a bit now. Here's my honest take on the pack thus far:
Turquoise Hill: Great track all around. The "new" track of the pack as of writing this, and it definitely shows how far you've gone as a map maker. 5/5
Genocide City: Honestly, the only map left that needs a redesign. It's not good. The theme is spot on, and there are parts I like, but many jumps between buildings leave little time to regain control before you careen off the side into the pit. 2/5 I usually SOC this out
Chemical Plant: I'm a little mixed about this one. It's great, but some of the sludge puddles can seem kinda cheap or unfair in placement. Great otherwise. 4/5
Advanced Emerald Hill: This is where I started seeing your development and was happy to see how things were going. One of my personal favorites, though, the hills seem to have a white stripe across them atm. 5/5 with a few nitpicks graphically
Metropolis: Holy crumbs this is a massive glow-up! A mixed track initially turned into one of my all-time favorites both layout and graphically. The music seems to lag slightly before looping, but that's just nitpicking at this point. 5/5 well deserved
Overall, the pack has improved heavily over time, leaving Genocide City left as the only outlier in a pool of great tracks. Highly recommend this for any server, and I look forward to any future tracks and updates :)
Your review will be taken into account, thank you very much.