Finally finished, hurray!
Some (or even most) of it didn’t turn out as satisfying, but happy to be able to complete it, also found some new tricks and effects to play with in Inkscape. Honestly wasn’t too sure to do this at first, and when making the first theme I was already ‘wasting’ time trying to find out the style and how detailed I should go (not to mention that Inkscape then crashed, though the errors made me learned that each objects has their own overlay modes in addition to the one on its layers). Not sure will do it again btw, lol.
Anyway, that’s all for this jumbled 2D detour, hope you all enjoy it.