Yeah, his face looks so much worse. Especially his super big forehead. And the eyes sometimes weren't aligned properly.
I get that he turned "younger" with the vampire blood, but that kinda fucked up the "cool" aura he had before.
@panzerkampfwagyu
Loli-vamp was also sitting outside during the day, drinking tea while waiting for MC. Of course it was under a bower, so maybe some shade has something to do with it.
As Awaawaa speculates - if it's some kind of progenitor/pure vampire blood then maybe the whole sun=burn thingy doesn't apply to him. Or maybe it's because he became a vampire on his own AND has a blessing from god.