Thanks guys for the answers! It seems it is mostly about the shapes of the head body in western comics (great point, now that I thik about it it is a very good observation!), face details and eyes, too.
As for why I don't want to be an "anime style author", it is not that I dislike the style or anything. Actually I quite like it, but... I don't know how to explain. I think there are in general many people drawing anime fanart and taking a great lot from the style. I am the type of person who maybe drew one piece of fanart in my life. I don't like drawing stuff that already exists. Like copying photos (that are not mine, etc.). I always try to add something mine. So when I started the comic, I never drew any kind of comic, nor in that style before, so it was obvious I wasn't jut magically going to invent my own stylization style on the spot that would be cool, but I just don't want to copy the japanese culture. I was going for a neutral semi-realism, simply find something I am comfortable to draw. But as I go by the chapters, the style changes and simplifies a bit and it looks more and more anime. And... frankly, when people look at my comic, I don't really want them to go: Yay, another anime-style! You know what I mean? It is not that I dislike it, but I don't want to draw like that since it wasn't my intention in the first place
But as was mentioned, the things labeled "anime" are sooo wide that it seems really hard to say what are the rules for making it. And I have seen some manga or that type of art which already looks fairly realistic, but only still had those eyes. But it is also art I admire, so I wanted to make clear I see nothing wrong with that, at all.
@Menbung Thank you! My goal isn't to make it look western as opposed to eastern, just... not be another art stylized that way. But if it looks Euroasian to you, honestly, that makes me very happy! Thanks 
@sarrowsmith10 Thanks. Yeah, maybe the setting, too... It probably is anime-inspired, but not consciously...
@SleepingPoppy It is not really a strong concern. I am not going to change the style that I am comfortable with, I was mostl just wondering what makes people see anime in it. Which led me to thing what makes the difference between the styles and I was thinking about it lately, but coudn't come up with anything, really. And I thought people on here may have an idea 
Thank you, I am definitely going to look for improvement. Not style,as you say, but anatomy, perspective, gesture and stuff lke that
@Rhonder That is actually true that western has maybe those two extremes. I also feel like I tried a somewht neutral simplicifation and it "became" anime, so I totally see what you mean!
@Reign I kind of understand anime is no the correst word for it, probably, therefore I am mostly thinking anime-style. I think of it as a colored manga, but with the colors and shading, it it just like in that type of animation. And thanks (although it's "her"
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