Well, I personally wouldn't do it as some whales could downvote it to prevent spamming. If you are looking for the community which supports artists I would suggest you to post in OCD.

They appreciate artists and you could potentially be spotted by their curators. They however co-operate with other communities (you can find which ones on their discord).

I've heard somewhere that someone was suggesting to have the possibility to post to at least 3 communities at the same time but I don't know if this is something what is being worked on right now. I guess that people are focusing on the current situation of the blockchain instead of development at the moment. This is just my personal opinion :)

If I would spot some news I would let you know :)

Edit: Your artworks are great but you need to post some progress photos and then you might get noticed faster. The more time you and effort you invest into a post the higher the possibility that someone will notice it and support your work :)