Using my own art as an example, please enjoy the "past" standard: 

A finished painting, taped off, using multiple layers and drying time in between them, watercolors and 100% cotton paper 

VS

Small doodles of my fellow cast members, during a rehearsal, while on stage, with a pen, no sketch, no drying time, super quick and low threshold (and very cute for memories, most were given away that day :) )

Can't wait to see yours!