"additionally the force behind the roar is so powerful it is able up anything weighing less than 20kg."
There is something missing in that sentence, fix it please. But otherwise the jutsu looks fine.
For the Steel Skin jutsu, choose one or the other If you want to make him capable of moving during the jutsu, remove the reflection. Complete jutsu stopping power is usually reserved for purely defensive jutsu. If you want to make him immobile while he uses it and use chakra to stimulate hair follicle growth to make a temporary shield that is fine, but making his skin hard as steel? (Steel release is banned, even for pets.) The closest thing that could really be done is chakra flow and using doton chakra to harden your body, but pets can't use elements. If you want it to behave like armor and have him be able to fight normally during the jutsu then remove the reflection and just say he infuses chakra into his fur in order to harden it or something, but no steel skin.