What is this about? Who is it for? What do you want to communicate?
I don't have any complaints about the first one. I like the second one more. I just think you should sketch the character, instead of using a filter that's supposed to look like you did. Trace if need be. The imagery is great, but it stinks of filter.
I like the second one more.
I don't think mathematics, coke, sci fi and pretty flourishes