Art's a no rules fight (unless you want to pander to the art industry in which case you need to follow their nonsensical rules XD) so no real way to do anything "wrong" ;D
Love how the buildings look like buildings with stuff in them even in such a relatively quick piece :)
I'm thoroughly guilty of using really strong lights or reflections to avoid drawing stuff inside buildings XD

Thank you!! :D Yeah the industry can be stressful. Which is why I try to do some art just for fun as well. It helps ^_^
Haha xD Well I'm trying to stick to 30min limit, I'm not that fast at drawing deatisl xD