here is what i made so far

I dont like the first 3 . But the last 2 , especially that Luffy one is pretty cool for i-am-not-a-pro-photoshopper. Maybe try more brush and add C4D stuff ? idk

brushes not the problem its just c4d i try to put more but i don't know where to place em or which ones to use gotta check some tuts bout em later

2nd attempt with smudging