So I can't find this work on the original Author's pixiv page to confirm (I'm not accustomed to Pixiv), but I'm pretty sure this is Daidouji Tomoyo from Cardcaptor Sakura, especially since one of his other works on here is Sakura (I can't find that one on pixiv, either). I'm tagging it, but if someone can confirm for me, I'd appreciate it.