Its kind of difficult to see anything, so....
The main thing I see is the bottom portion of the arch isn't symetrical..
this is very roughly done
if your trying to mimic the extisting opening, it may be better to drop them further down (allowing more ceiling) and make them slightly smaller..
We all suffer from anxiety over our work and weither its a mural or a canvas we goi through ugly stage after ugly stage until we finally get to a pont where we can say "HEY that works!" Fortunately others seldom see what we perceive as ugly.