Not sure what happened. I was nearing completion of my post and it totally disappeared as this site just shut down. (So this answer won't be nearly as good! lol!)
I differentiate between seeing and looking. Often we can't help what we see. But looking typically involves intent. Intent can be sinful or lead to lustful thoughts and outright sin. What we look at/for and why determine if it is good or wrong
We also notice many things. I notice things that are out of the ordinary - a very tall person. I also take note of things that are striking - jet black hair, platinum blond hair. I'm "interrupted" by things that are striking - what someone wears, how they wear it, or how little they wear, someone's face or eyes, etc. But at some point it is easy for our taking note to be taking a look and going down a sinful path.
It is common for us to have preferences. These personal favorites draw us toward such things by means of our eyes, emotions, feelings, etc. As we say, beauty is in the eye of the beholder. We easily/readily behold what we consider to be beautiful or attractive. If we have ungodly preferences, that is wrong to begin with. But if they are neutral or clearly positive, us seeing such things and appreciating them can remain neutral. But it could go awry as well.
(Can't remember the other things I wrote :( )