Hector Martin (assuming they're the same person) looks perfectly fine on camera. They're an average looking person but I fail to find anything anyone would criticize about his looks.
My first response was a bit curt so I've removed it. (Edit: I can't seem to remove it.) Yes I'm aware a lot of women get harassment when they show their face streaming. It's one of the reasons it's so popular in Japan for women to be vtubers rather than show their face while streaming while the popularity for men doing it is significantly less (though there's still plenty who do it without changing their voice).
However Hector Martin is not a woman living in Japan and they look perfectly fine/average.
