Alright firstly I love what you did with the fur & the coloring but I can see you have some problems with certain parts with the muscle & bone structure. In the midsection on the character, I cannot tell if those are supposed to be folds of the muscle or anything but that is something that automatically seems off since the muscle in the area does not form like that nor is there bones there. for the frame of the chest, it seems way too large & you have little room to work with for the abs & I think it's for your lack of basic proportions which will make sure you are drawing the body as correct as you can. I do also seem some small little details to show that it's fur bud those details look more so like feather pattern & don't have a general direction they are going in a great way to practice fur is working with real-life animal references or some natural hair to get the flow of the fur. To move on to the last thing which is the shadows, lighting, & coloring. so you do show there are muscles being shown or indents but I see no depth brought upon it which is very evident by the way you color. You go straight through the lines that you drew for the line art but it makes it look really flat so to learn how you avoid this maybe do some cross contour with basic shapes & forms to practice how things should work. Another thing, you need a lot to work on which is obvious but start off by learning the fundamentals for right now so you can get an understanding & learning human proportions to help with the basic forms but for now do fundamentals because you are lacking in them currently. Hope this helped you out in some way

Yes! Thank you very much for the advice!
I'm getting to work ! <3