Metroid: Anomaly (WIP)

[gravitygoesup1]

Hey all, this is my first rom hack. It's for Metroid (NES). I've been working on it for quite a while but I've hit a plateau in the level design process. My goal is to make a veteran difficulty, vanilla style hack and so far I've completed Brinstar and Norfair. Kraid and Ridley are 20% and Tourian 30% complete. I'd like to get some feedback on the following points:

- Overall map design
- Room design (platforming, enemy placement, room variability)
- Upgrade progression (pacing and location)

Obviously I'm not going to ask how to build the rest of the hack but I'd like to know if there are any gimmicks I could use to expand the levels and keep things interesting, because I feel like I've hit a wall in terms of what I've been doing so far with the first couple areas. Feel free to open this up in Editroid if you like.

Thanks to anyone taking the time to look at this, anything is appreciated, even if it means I have to redo a whole level.

Google drive link: https://drive.google.com/file/d/1IenVfXKFTP8CRntgYogP-c4ATApRfbqy/view?usp=sharing

Screenshots:

[Flaviogames]

I already find this game very difficult, if you are going to leave it at a level for veterans there it will be extremely difficult, but for those who like difficult games it can be interesting