Not a sci-fi or anime fan sadly so personally 1st room I'd rate 6.5/10 and 2nd room 7/10 but if I was one then both are 10/10. Surprisingly that 999 in the 1st room fits well
6.5/10 I love the aesthetic you’re going for but I don’t like the overlapping furniture (abv desk, poster, and 999). The bookcase and plant doesn’t really fit either. I’d recommend a dark brown simple wood bookcase. Maybe something kind of thin so it matches the desk.