I would say he was always supposed to be handsome being taller than Matthias and everything. Also Suzuka-sensei's art definitely played an extra part in it.
Thanks for translating this. I recently started it so I am really glad.
BTW, I think using Mr. Takuto in place of Takuto-sama sounds weird and doesn't really express the feel. If possible please use Takuto-sama (or Master Takuto)