First of all, I love your drawing style x3 Now for the redline, i'll list some things I noticed below.
- Neck was too long. The legs should have been closer to the head and you seemed to be missing a chest.
- Too skinny. Most canines, including foxes, just aren't quite that skinny. Most are actually a bit hefty.
- Back legs a tad too long(adding a ground line helps with that) and on a weird angle. Canine legs should be more upright.
- Dew claws should face eachother. The right one was also just a tad too high.
- Fox tails are rounded, not pointy like most canines.
It's a great start though, keep going!
- Neck was too long. The legs should have been closer to the head and you seemed to be missing a chest.
- Too skinny. Most canines, including foxes, just aren't quite that skinny. Most are actually a bit hefty.
- Back legs a tad too long(adding a ground line helps with that) and on a weird angle. Canine legs should be more upright.
- Dew claws should face eachother. The right one was also just a tad too high.
- Fox tails are rounded, not pointy like most canines.
It's a great start though, keep going!






