I love the 3D pixel art, seeing the buildings change perspective as i was moving actually prompted me to spend about 5 minutes just appreciating the visual style.
QOL comments however, I feel like the background (dirt and roads and the world itself) Is so over saturated and rich in color I literally cannot see the enemies or bullets or my targeting reticle at a glance. Most encounters with enemies i had were surprised when something suddenly connected.
There's a real lack of contrast between the environment and the game play elements.I'd be a rookie compared to the level of development you're at but I've been an artist for a long time and I'm struggling with visual clarity. Especially on a desert level (yellow) with my bullets (also yellow) with no way to do anything about it. If i was color blind or had issues with yellow/red, this game would be visually impossible to follow. I say all this cause the visual style is absolutely gorgeous and the gameplay is great and those two aspects are in a bit of a conflict, bringing down overall experience a bit.
Even if there was an accessibility option to increase the size of the reticle and targeting graphics around the enemies it would be a step to help this particular point out without even touching the saturation and contrast of the world
but I feel like the contrast and saturation of the levels should be adjusted for your beta/prerelease versions.