Looks like there's plenty of skin to cut, as in the toes aren't fused very closely. I would cut the skin between them if I were you, but you may prefer to cull. After all he/she won't make a good breeder. But it may make a good pet, good layer, good meat bird, good foster mother, or whatever. I've had silkie mixes that were high production eggwise, and all the various bantam mixes I've had were great meat birds. I've also got some pets, some foster mothers, some breeders, etc... Bad feet means you should examine the source of those genetics but it doesn't necessarily mean you must cull this bird. If you want to cull, it's easiest done by holding the body firmly in one hand and ripping the head off with the other hand in one very fast and strong motion. You might prefer a less traumatic (for you, not the chick) method, i.e. chemicals or freezing, but removing the head the way I mentioned is the most humane way I've found. Anyway, best wishes.