The flower for each level blooms more depending on how many hidden green flower petals you found in that level. Also one of the flowers doesn't look like it's blooming, but that's just the way it looks even fully bloomed.
deoxxys posted... Also for some reason my flower didnt bloom after that level (electric tower level)
Yeah, that one got me too. Turns out that flower is not supposed to bloom - even after finding all the hidden flowers - because it would be inconsistent with the nature of the level (no pun intended). Honestly, I'm impressed the devs put that much thought into it, even if it does look a little conspicuous back in "the room".
Only a fragile psyche remains where once was humanity, waiting to be shattered by a grain of sand... And without sanity, is a man still a man? Even a Holy man?