wow! these are some really cool drawings, especially for the time of season it is!
if you're looking for a bit of constructive criticism though, i'd suggest practising your symmetry a bit. it seems you're more of a traditional artist, so i'd suggest after you have your sketch finished and are ready to start inking and colouring, take a picture on your phone and flip the image. it's much easier to spot where things might seem a bit off or slanted when you do that, and i find that it really helps!
as well, the anatomy, which i can already tell you've been studying! some things are a little blown out of proportion, for example on the back leg of the second to last drawing is a bit chunky in the heel, since it has a canine-like body. just keep practising, is all i can really say on this. there's no easy shortcut on understanding anatomy, i'm not even there myself, but to just keep going at it.
i would suggest a little bit more higher quality colouring pencils, though of course they can be very pricey, so that really isn't something you need to worry about. i do genuinely think these are some fantastic designs, and although not particularly my kind of taste (i'm a little more on the cute and cuddly side), i can still really appreciate what you've drawn up! seriously, keep it up, and i'd love to see more of your work!
