Waterfall is a tumblelog platform, built from the ground up. There are no gimmicks, or attempts to be unique - just a pure, familiar style, catered to artists, adult (and otherwise) bloggers, and… well, everyone really. Tumblr’s style is familiar - why ditch it? It just needs a little love to make it worth using. While in heavy development, it's coming along pretty nicely.
Waterfall is free to use - forever - but since a few people asked about supporting the site, this Ko-fi goes towards maintaining the server, funding an extra feature here and there. It's completely optional, but every little bit is welcome!