I thought this was almost certainly a fake but I find the bottom and colors convincing... I've asked a few chinese I know and they told me it could be genuine but were not sure... Do you see anything wrong about it?
This is doucai, and it would be imperial if correct. However it is not possible to judge this based on pictures. I would be careful, doucai and other wares seemingly from the official kiln, marked Yongzheng, are currently in considerable numbers in the market. Suspicious...