I've seen this in use in other art websites: "Moderator's Choice" promotions for creative content. Occasionally, a site staff member may come across a piece of content they feel is particularly high quality and they can promote it in an unusual way. Maybe there could be a site section for lesser known creator spotlights highlighted by members of staff.
This concept could go even further with users themselves perhaps nominating creators and their work to be featured.
This is to contrast the automated "most popular" sections of art that simply highlights whichever has the most views/highest numbers automatically. If users could take promotions a step forward to a site-wide section, then more creators could get new exposure.
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