The game looks nice visually. However there is a lot going on without much explanation I found it bit overwhelming and wasn't sure what I was supposed to be doing. I finished the level but most of what I collected along the way never got used.
It was always telling me "You are not in the sun" but I wasn't sure why it mattered. It seems like this is an important mechanic but it is never explained.
For the gunplay, I found it really hard to see where I was aiming and the shots didn't seem to land where I was pointing. It seems like the spread might be intentional but it seemed like aiming made it worse (or maybe it just felt worse since there was no reticle). The firing sound effects and impacts felt pretty lackluster. Improving these could help quite a lot.
The overall UI is great visually but as I mentioned previously there is a lot going on. Introducing UI elements over time as you introduce things would make it easier to take in.