concept
I like this concept! Great potential for good renders.
I would try to improve this scene.
* add some highlights to focus on some parts
* brighten up the pic a bit
* the rear tire is too dark. Cause this tire seems to float
* the ground plane needs some roughness and/or maybe some bumps
most things depends on your intention.
You'll find many automotive renders here as well some tutorials to find the right ideas.
Maybe you want to share some pics and close ups of this cool bike?