Added watermarkless versions of all my posters to the archive (Patreon)

That was a lot of re-saving and uploading...

Unfortunately I don't have an easy way to remove the watermarks from my animations unless I render them again, so I don't know if I'll do that for all my old animations or not. If anybody wants a specific animation without a watermark I could do that although it might be a bit before I get around to it.