ohhh I see this message now :D welcome here!
Is a really good place to show art! :) I recommend you to post in the communities of onchainart, alien art hive and sketchbook, you can also share speedpainting videos on 3speak, the video platform for hive.
you can see in my posts I share all the process, since is a blog, the blog format works better here, I mean, to write and explain how you do the drawings and why,
you can also check https://nftshowroom.com if you want later to mint nfts here using hive (it costs 5 hives to mint, so maybe you want to earn before some hives posting articles and interacting with the community).

good luck and any question you have how this site work, the hive power system or anything, I'm here to help!