ok first pls dont look at this as a whole just look at each individual part otherwise it looks odd
you actually did really well!! All you really need is practice, but a few things i noticed;
Your muzzle was a but short for a canine, so just lengthen that a bit and you'll be good!
eye just a little higher up, idk how to explain where to put it but ye qvq dont wanna stare down ur nose
ears connect at the back of the skull, not the top, but you didnt do too shabby <3
slightly shorter neck in comparison to body size maybe?
the ankle on the back legs is important too! as well as the thighs, otherwise your legs will end up just looking like a fat stick with a paw ;0
other than that though, just practice!
as for the handpaws, my idea of handpaws is anthropormorphic hands so,,,,i didnt know if you meant front paw, or hand paw, so i just left that out qvq sorry