Hi Marco, I would like to advice you to have a look in @NTopaz blog, you may find it interesting for you as there are many artists presenting their works there. Here is the link to the latest posting guidelines and if you have any questions please get into discord and we can answer your questions :)

There is a community who appreciate good Artworks called @NTopaz if you have interest just look in the latest post
https://steemit.com/ntopaz/@ntopaz/update-ntopaz-posting-guidelines-related-to-some-changes-in-the-voting-policy

Also is you use such tags as #ocd-resteem, #c-squared you can also visit their discord to learn if there any requirements to get their support :) Good luck :)