first, it's quite hard to create a decent piece of art appealing to the audience. If you can do this, go for it!
Thanks for the compliment buddy

I second the opinion above that you need to go to the specially designed thread to promote yourself.
and last but not least, you could both educate yourself using google and advice or cooperate with some of the brands or platforms engaged in auction/selling activities.
Luck.
I think a proper section for my Selling thread is needed to collect more possible clients. I am looking for a platform who accept cryptocurrencies for their products and services. Unfortunately, this is the only forum where I can attract client who can pay crypto.

How long I've wished this topic to come

Didn't find any pieces of art there. Looks like it was a one-time event, but will check it from time to time
I have seen a lot of similar threads, look into the auction and collectibles section.
So she told me the other day how she googled the platforms and one of them was exactly ModulTrade one.
Can you tell me more about ModulTrade?,
I asked the friend about ModulTrade company, she advised checking their telegram chat with the same name and to ask admins about the benefits of using of it for creative businessmen like you directly or read their articles on Medium as it's worth checking... and it would be much more informative than me explaining it I guess.
How is it going with the local threads by the way? Hope you re making some progress with it buddy