Don't think I forgot about you man, while I don't many new wallpapers I still keep myself busy with new projects.
Right now my current one is Live2D rigging and animation. If you get really good at wallpaper engine, I suggest you try getting into that too. Its actually a very profitable and fun career path as it even lets you get it Spine2D which can open up a lot of paths.

Hope this message serves you well and if you want you can always message me on discord
Discord: Denpa_KB