Thank you so much!
I'm pleased that you enjoyed it!
Yeah, I have a bad habit of making the levels pretty hard :P
About your suggestions. Yeah, I realised that the shooting is hard to aim, but I didn't have time to change it. The crystals, my bad. I playtested it so much that I thought it was hard enough.
And no, it's LWRP. The lighting is baked into the textures so it gives them the feeling of HDRP with low processing power.