Sorry for the late reply guys!
HM I’ve not read much manga in recent years (mostly due to lack of time) but one of my all time favourites which I’m up to date with is One Piece! Other manga that I loved from the top of my head are: Honey & Clover, Full Metal Alchemist, Nana (and other Ai Yazawa works), Hourou Musuko, Monster, etc. Whilst I think all of these have great art, the story is always the deciding factor. :) I couldn’t read a manga purely just for the art - mostly because I’d have short attention span.
I’m pretty weak at anatomy, perspective and background. This makes my art sometimes repetitive because what I can actually draw is limited. Last year I got pretty sick of my own art after drawing a million head shots, so now at least I try to draw whole bodies - but I still find my art to be too flat. There’s a million things I’m not good at - light source, colour theory, facial expressions, character design, drawing males, etc etc etc.
This is more what I enjoy than what is my strength - but that would be watercolours. It seemed a weird transition to go from digital to traditional media but ever since I started using watercolours, drawing has become even more enjoyable. It’s changed my style a lot! :)
Thanks for the questions :D!