Oh no, simple and stylized is the best! That's how I got interested in anime in the first place. I liked the art... simple and stylized. That's my problem trying to draw manga... I start off with too much detail and it ends up taking forever, or looking messy/like crap. Then I get bored and trash it or just never finish it. Whenever I TRY to draw characters... they look like crap. The best come when I'm just doodling not trying to make it good or anything... just nice simple sketches...
I also liked you're action shots (a lot of amateur manga either has no action or very stilted action where they look kind of wooden in their pose). You have some pretty good angles and keeps it exciting. I'm sure you can get better too.
My only critique would be to work on the hands... they're too detailed for the rest of the picture and they look a little funny with all the lines on them... and some pictures the hands are a bit small... but other than that, I really like it. Oh and possibly work on profiles a bit more so not all the characters look so similar and makes each one stand out more. The three guys look pretty similar with slight only slight variations. But no big deal.
"Take me down, shake me out. Give me a brain, that I might know You better"