im quick with sketching and dont focus lots on details so it will usually take me about 15min if im drawing something im comfortable with. it also depends for full pieces: if its a character with no background it might take anywhere from 2-4hrs (which is longer if theres multiple characters), and more complicated pieces with backgrounds take me more than 10hrs (altho im almost never that patient!!! grrr). for softwares i honestly think it has to do with what your goals are! i rly dislike doing comics on procreate, bc csp has so many great tools for that, but the interface can be so overwhelming i usually spend most of my time drawing on procreate (also bc all my favourite rendering brushes are on procreate!!!!). but csp also has that annoying subscription thing now so if you have to choose id recommend procreate definitely..!!! its insane how good it is for its price (and i cant say much about the animation features for both bc i never animate :''') but its things to consider! also 3d models on csp are great !)