Solid game; you've nailed the aesthetic. I got to draw the curtains and then died when I jumped back down.
The crosshairs are hard to see. The text for ammo/health is too tiny to read and they look interchangeable
Enemies will just sit and get shot as if they had cover if there is a short obstacle between them and you.
Circle strafing is the answer to every enemy encounter, but that's fine for a first level.
Overall the only problems with this are the ugly UI and title screen.