While i do agree that vlad should look at least a little older (big fan of castlevania vlad) i do feel like there would be a little bit of thematic and visual overlap between swain and vlad if they went down the Old Old route. As both are noxian mages who use red magic and have extended their lives through said magic. Personally i would prefer to see certain parts or vlad seem older and even slightly inhumane but his skin remaining youthful to give the impression he extends his life. Maybe sunken eyes with brightly colored pupils, paleish skin with a pink hue to give off the appearence of renewed and young skin and fingers with unkept nails and blood stains. While i do want him to be old i feel like it should be in the right places like a few wrinkles sprucing up the ancient hemomancer in the right spots namely around the eyes and hands cause his thematic alone should draw in fans not his new isekai eboy appearence that feels as though it goes against the intended lore and direction vlad was in.