This looks gorgeous!
Loved the feel of the shooting action, although it was a bit hard to move at times. Felt too easy to be cornered, but that's probably just a skill issue.
Sounds were good, especially shooting. The music was fitting but it felt a bit too low. Had to crank up the headphones volume, but not that of a big deal.
The options menu had a lot of options, that felt very polished.
One thing I'd change was having the pick up text show near the character. I don't really pay much attention to the mouse since I just focus on my character and the enemies, so it took me a while to notice the text.
Overall a really solid entry, congratulations!