You can try making some of the guys taller and more muscular, where it should be. You should also try different body types for your characters. Not everyone is short and skinny. The girls could be drawn with a bit more curves and maybe try putting eyelashes on the girls.

Don't worry Taiki, anatomy isn't that awfuly hard to draw. I'm serious. Look at youself in a mirror, you'll see. Try with something simple like the muscles of your arm. Add just a shadow here, and curve there, and you can do something nice. I'm not saying it comes with just 5 minute of light tries, but once you'll start, you'll have a lot of fun.
And sorry i don't have any advice for girls, i'm not good at drawing them ^^

hm, lets see, if your talking about your current Taiki comic, the only thing i would tell you about it, is your lack of background, scenery. But when doing so you have to make at least the character stand out from it. like making the background darker or lighter. Like, we do know what the setting is, but people tend to forget at times, and i really do know that it is a hassle to draw them a lot, and one of most difficult things to draw as well, but if you keep drawing them a lot, i bet you'll get better. ^^

Another thing is your character's proportions. I know your art style seems a bit "cartoony", in my opinion, but they also seem realistic at the same time. Because it talks about a girl's life in High School and such, So lots of people can relate, but the way you position them, doesn't seem to be realistic to me.....as in my opinion that is.

Hm...and maybe another thing i would say (last thing, i promise), would be the way you perform your characters using only one Angle. What i mean is, its great that you know that the person is talking, but we need to at least know how the feel even more, by making more camera views on the character. Cause pretty much Comics are like movies, its just boring if we just see one side of the character all of the time. We have to see the Dynamics, to make the character look 3 Dimensional. Like, more of a bird view or worm view. That would SO tip the mood a bit, if you know what i mean. So we'll know what your characters feel, than just reading word bubbles all the time.

Sorry for my EFFIng long Critique on your comic. O__O;;; I just want you to improve, and you really want advice, and this the best i can give you. To tell you the Truth, i draw, but i don't a lot of comics. but can understand some stuff to help you improve. Cause i really want to do some comics some day. ^^ but i'm to lazy or to busy. XD;;;

Well, i hope this will Help you out Taiki! ^^ and if you have any questions, i'm here to help you out!~ ;D

well, if you tend to practice more on backgrounds on another piece of paper or some scraps, i bet you can get better with it if you apply it to your comics. Than your backgrounds wouldn't look 'crappy', if you would put it. Just Keep practicing it with. Take real pictures of places that might relate to the story or something. So you have a general Idea of how it'll look like and it'll be stuck in your memory! ;D

I'm Not saying that your "cartoony" style is bad. And i do understand the fact that Pokemon has created a style that you are satisfied with. But not a lot of artist is always satisified with their own Drawing styles. and i'm actually one of them. So its always good to play around with different things. ^^ And well sometimes that usually happens at times. But i bet if you keep practicing with draw some realism, or study from observation, i bet you'll get better with you drawings! ;D

Ya, i can see some changes from this chapter compared to the others. And i have to say, you have improved a lot since chapter one. And its good. You seem to realize some of the mistakes that you've done and you want to fix them. That's what i like about Artist's these days. ;D like you!

Keep Practicing!