No worries XD, you're right about the camera and that it's probably cause of the lack of parallax on the background, i've already published another update by the time i'm replying here, but i'll work on that for further updates, probably when i'll start a bit of visual revamp and try to make different backgrounds to have variation.
Didn't even think about it but Rain seems like a good idea, and very fitting for this background theme(even a further revamped one) I'll see if i can make this happen down the line :)