This is a cute character, but there are some things you could do to make the picture look better. I realise that she is stylized in an anime way but even within that style there are ways to really polish the style and make a piece look intentional. I can see some anatomy flaws here that could be ironed out. Anime girls tend to have unusual anatomy, but it is easy to tell that they still are based on real anatomy; the artist knows which bits to exaggerate to keep the character looking believable. I'm going to point out some areas that I think you could work on to improve this image.
Firstly, the general body structure - it would help if you looked at real bodies for your future pictures, of course, but I'll point out some things that are of special interest in this piece. Currently, her shoulders are rather too rounded and you have neglected to consider the collar bones as anything but two randomly placed lines. The shoulders could be made wider (her arms look like they're very much squashed into her torso at the moment) - have a look at some pictures to see how collar bones work, as well as the muscles that join the neck to the shoulders. She could do with an elbow as well; her arm currently is one long straight tube!
I think joints and the way the body parts generally connect up are something that might give you problems. The wrist, too, looks stiff and it looks as if the fingers pop straight out of the end of the arm, almost (I think you also need to give her a bit more 'hand' before the fingers start, and have a look at some hand anatomy - don't worry, hands are notoriously difficult!).
Feet, too - are you perhaps a little nervous of drawing them? It looks as though you've been a bit unsure about them and have ignored the fact that she should have toes, ankles etc. - I can see a vague shape of a big toe there (but you've put it on the wrong side on her leg that's furthest away from us). There is also a bit of a problem with her bottom, her leg furthest away from us doesn't look like it's joining at the right place; I feel like I'm seeing too much of her bum cheek on this leg. Also, her boobs are not quite a natural shape!
I'll not go into detail about the face, because it's anime styled - there are ways you could polish that, yes, but anime is not my area of expertise and I'm not 100% fond of this particular face style. I'd suggest looking at other artists for inspiration here. The style itself could use some polishing, but I understand what you're going for. Style wise, however, it might be nice to look into different ways of doing fur; the tail for instance looks more like a solid mass with lumps poking out of it than, say, sticky-out fur. Fur tufts tend to taper and be more numerous. Same with the hair, really - you've got the tapered effect on the hair more, which is good, but it still looks a bit 'lumpy'.
Perhaps you could also experiment with line weight, a lot of anime artists very successfully use thicker lines in 'heavier' or shadowed areas and thinner lines for things like hair. It can make the image look more dynamic.
thanks a lot for taking time to leave me such a comment now when you pointed it I do agree that her arms- one of them most, looks a little bit too rounded. that's right and I overlooked this while doing the deviation about the single line of collar bones- I just di it with such a line, because I don't like drawings of girls that have too much visible, too strong marked collar bones. I guess it's a personal prefference about feet- feet and hands are the most hard things for me to draw. I was practicing them but they don't seem to come out right, unfortunately that's the thing I need to focus on most, because it's kinda bugging me from time to time that I can't do them how I want but I ust need more practice and hopefully I'll learn how to do them better in the future ^^ about faces- I guess that's the part of my style. I don't really get what's wrong with them, if you coulg explain more I would appreciate it but so far I like them done this way. I do agree about the thickness of lines too- but I must say I can't use it. I'm using photoshops pen tool for lineart and doing all stuff with a mous so it's hard to use different line thickness, so I think I need to stick with that
Oh by the way, about the line art pen tool with photoshop. I'm by no means an expert with it and it would take a lot of testing and trial and error, but if you use stroke path (I think that's what it's called, I can't check at the moment) with a more oval brush, it might help with the thickness issue. It won't be that controllable, but it might help a little.