As an art buyer, I see these things too frequently. As an artist, if you want to increase your odds of getting someone to hire you for commissions, it is better to not do these things:
Trash talk other peoples’ ethnicities, genders, nationalities, sexual preferences, etc.
The people of those physical characteristics will not appreciate it, nor will the buyers thinking of their own diverse extended family and friends.
Be careful of what things you fave or post, making sure the intentions are clear. Will someone half a world away and speaking a different language understand the infamous genocidal dictator painting in your gallery is not glorifying him but is from a comedy movie or game which turned said dictator into a zombie to be defeated? If you are doing historical reenactments which include governments which oppressed others, is it clear that the pictures are for historical purposes only and that hate is not supported?
Trash talk your own art and your own processes.
If you spotlight what you hate about your work, how you are always late, and other negative things, how is that supposed to sell your skills? If the commissioner didn’t like your style, he or she would not have paid for it. If you have a problem with lateness, budget your time better in the future.
Trash talk the requested subject matter.
If you don’t like something, don’t agree to the commission. Who wants to see something such as “I drew this for the money but I really dislike dogs” in comments under a painting of his or her beloved furry companion?
Trash talk or gossip about the previous paying clients, especially on their commissioned pieces.
Seriously, who wants to be the next person to shell out money for this? It is unprofessional enough to name and trash talk previous employers, which are companies and not real life people. People entrust you with their personal information. What does this say about your gallery as your resume when you violate that trust? Why even mention the commissioners’ names or initials at all, or anything else about them as people, whether you are friends or not? Just call it a paid commission or a request and leave it at that.
***Comments are disabled, not because I am snooty, but because of negative comments I frequently get (which are racist, sexist, and so forth). If you are reading this, hopefully, it means you liked the art enough to take this closer look and that it made you smile. Thank you and have a beautiful day. ***