Just a hint:
If you have the choice, always photograph a bicycle from the right side, because that's the interesting side due to the drive train!
That's especially true if you photograph a bicycle to sell it, because experienced buyers will want to judge the condition of the bike, and a good photo of the drive train will show if you've taken good care of the bike (wear, rust, dirt). If you don't show it, people might think you want to hide it.