firstly you need to make sure you have the right model (look at the front plate)
secondly add some sort of floor to add to the detail a bit, it looks like everything is floating otherwise
lastly you need to work on your materials, your current settings make the bikes look dull and plain
other than that it doesn't look to bad, seems to line up just fine. I hope this helps, if you have any questions about what I've said please let me know