I get what you mean. There are girls with more feminine face and I am too although I don't act like one.
Rounder faces are considered more feminine if that's on aspect of yourself. There are also crossplay male makeup tutorials for you to look up online.
This girl looks really feminine but it's simple and nice. I think she's cosplaying Len or something because she still looks girly.
This one is a lot more extensive but if you compare the before and after, you can see how a woman changed into a manly face women.
This one is my personal favorite because the tools are ones easily attainable (?).
*Usually males have skinnier eyes than girls in mangas and comics. It also depends on how you style your wig.
You should try cosplaying a feminine boy character first to get the hang of it then move onto harder bishounen make-up.
I hope this helps because it's 11 at night and the words here might be messed up a lot.