So I've just read all the episodes you have so far for The 5. I also subbed, rated, liked your episodes, and left a comment to show my appreciation !
I think your comic is really cute! Like seriously cute! I actually think your artstyle kind of suits the comic too. A super-detailed style like mine wouldn't fit the comic as well as your current artstyle does.
I think that maybe smoothing out the character's lineart can work if you were looking to up the quality of your comic. I noticed that some of your lines looked a little wobbly. You can also try varying the line-weight more to give the characters a little more depth to them, appearance-wise.
You can also try exploring other chibi-styles (only if you wanted to try them though!) You're not constrained to follow the same style just because you started the comic in that style, and you might end up finding a new style that you like more.
Story-wise, I really like the distinct personalities of the five, and I love the way they interact and get along despite their differences. You could maybe stand to have them mention each others names more, just to help the readers understand more easily who each of the characters are. I found myself referring to the first episode to remember some of their names.
I enjoyed your comic, and I look forward to reading more about the 5's antics. Cheers!