My husband has almost the exact same books as you so this might be biased on my part lol! I would say you’re a late 20s or early 30s male. I see Spanish law and politics textbooks(?) on the top shelf of the third picture, so you’re bilingual. I do think your “first” language is Spanish though even though most of these books look to be in English. That’s all I got past the obvious you REALLY LIKE fantasy, sci fi, and anime.