Hey don't worry about it. You didn't really call anyone ugly, you only stated your opinion
You know, Some of the women I know have really scary looking eyes wearing veil but when they take it off, their looks completely change.
Where I live, many indirect female relatives don't cover up their faces (most only cover their heads and some very few show their hair) to us relative men in closed places like private properties and family sections in restaurants, so we know how they look with and without those.
Please don't hold it against MuslimInBlack (and I'll be in your debt) for what she says. She's one direct example of what your opinion describes and that sometimes makes people uneasy.
Oh by the way, and by extension to what I said above, some women have so very beautiful eyes that attract me, but once they show their faces in full, I see that they are not my type and unattractive. This specific experience I got from Arabic TV shows. It shows up clearly with actors with plastic surgery done wrong.