Is it normal to have uneven eyelids after having stye? (photo)

There are two possibilities here.  One possibility is that your ophthalmologist is correct if indeed the chalazia have resolved and there is no more inflammation.  Sometimes patients are "sure" that their eyes appeared a certain way prior to a problem when in fact they may have had some mild asymmetry that they did not notice until an issue occurred and observed more closely.  
However, I suspect that a second possibility is more likely.  Chalazia are caused by blocked oil glands within the eyelids that can result in chronic inflammation and swelling.  Even if the chalazion is resolved, you might still have some mild inflammation and swelling causing subtle/mild ptosis or droop of the eyelid.  Would wait this out for another 3-6 months.  If the lid is still droopy, and this bothers you, seek an oculoplastic surgeon who can talk to you about ptodis surgery.

If you had a large chalazion that caused eyelid swelling, it is possible to get some ptosis (droopy eyelid) due to the mechanical weight of the chalazion and eyelid swelling. I suggest you look at some photographs of yourself from more than 6 months ago (before you got the chalazion) and compare the position of your eyelid(s) in those photos to the way they look now. Consult with an oculoplastic surgeon to assess whether the chalazion is still there and assess the ptosis.