Thank you so much!What a lovely, soulful expression!
Does your cat have a fluffy tail? If it does, I would describe it as a brown mackerel tabby domestic longhair. If the tail is not at all fluffy, then you have a domestic shorthair... but I am guessing longhair, because I think I see a bit of a ruff. Most cats are not any particular breed, and we call them domestic shorthair or longhair depending on coat length.