/ic/ - Artwork/Critique

Process for invention?

I can copy from reference and to some degree understand the forms underneath but I feel like there's gap between these skills and actually creating a pose with particular proportions, features and clothes. It's significant effort just to take a mannequin figure and rotate it in perspective, in practice how do artists actually do this with an entire appealing figure and then add clothes on top knowing where they fold and all. It seems like the sketch would take hours and lots of reference but artists shit these out in minutes, what the fuck? Is there some guide to this or am I supposed to just do studies of different clothes at every angle?