The sketches are nice, but the true novelty I see here is the manga!
I'd like to say I agree with those who complimented you for the use of backgrounds. Also patterns used for the clothing add a stylish touch to it, making it look more varied, less empty and definitely more "professional" looking. Your style is taking the right direction: you took inspiration from the things you like, but developed it in a personal way! I like a lot the variety of poses, the fact you represented not only close ups of faces, like many who try to draw mangas do, but settings and different details and elements. I'm happy you're working hard to improve your style and skills! Too bad I can't read the text
I bet I'm not the only one who is interested in seeing more works like this!