i've been 99% active on twitter, if you want some real time posts of my stuff (mixed with memes and retweets) you can follow me here https://twitter.com/py_bun
but if youre okay with waiting months and suddenly getting spammed with my stuff, no need to follow me on twitter
thanks for sticking around
usually artists include instructions on their commission info on how to contact them and what details you have to include in your message otherwise you could ask them.
you gotta have references for the character you want to get drawn. artists ask payment before or after the commission is done, they'd let you know. dont give them a novel to read just to describe your commission or your character unless they ask.