to explain these to new folks, i go to conventions and do live drawn digital commissions. they're drawn on my ipad which is hooked up to a computer monitor, the commissioner gets to watch me draw it, then they're printed upon completion. most (not all there are some where i was paid to spent longer on it) take 10 -15 minutes.
But if you like my style, sketch commissions like this will be open once I've completed my last round of conventions. o7 They might be drawn live on a twitch stream so you get the whole experience.