I just now realized that there are multiple women kissing one man...
Li estas felicas
Li estas tre feliĉa
I had the build-a-sentence exercise for this one. The last two words were bela and esperantisto. I wanted to use the latter, just to make a point ;)
womEn kiss the mAn
Yeah, he is handsome
Why is it La virinoj kisas la viron, ĉar li estas bela and not La virinoj kisas la viron, ĉar li estas belan?
In the first part, the man is the direct object (of the kisses from the women).
In the second part there is no direct object. He isn't doing anything to another thing.
Because after the comma has no accusative.
Does Esperanto has a separate word for handsome, like English?
As far as I'm aware, no.
Bela is interchangeable between beautiful and handsome depending on what you are describing.