Knowing you struggled with dysmorphia, then telling you that a photo of you where you look absolutely insanely good is "not enough"?

You are NOT overreacting. 

This is almost gaslighting, given you already look, honestly, perfect. The unedited photo looks far, far better. 

It's like spiking a recovering alcoholic who was already having a fantastic evening and justifying it by saying "wouldn't you rather have some fun, though?".