You CAN tile them in Decroded's style. There's plenty of examples of that.
I don't have much time, but basically, it goes like this:
- Draw a non-tiled platform like Decroded's
- Cut it up into tiles
- Try making new platforms with the tiles
- Alter certain tiles to tile better, add new, missing tiles
- Repeat those last two steps
There is no reason in 2015 to create tile maps consisting of just a few basic tiles, we don't have computers with 2Kb of RAM anymore (NES, etc)