As a map maker, you can do whatever you want. Your maps are beautiful. In my opinion the schemes that have lots and lots of maps don't need so much more maps compared to many interesting ideas around WormNET that only have few maps. If I had knowledge on Image Editor Programs, I would make maps for the alternative schemes, the ideas that have potential, but very few maps.
That's what I admire in sbs, he is always creating maps for alternative schemes or innovative ideas. I would suggest any scheme you find on Scheme ideas or Schemes page that are great and you think deserve a new map made by you. And if you want to make a map for a famous scheme that has a lot of maps already, there is no problem too, sometimes is nice to make a map for a popular scheme, the map can still be unique enough to people play on it.