Not a small dog, but we have a 65 pound mutt and we feed her about 1 to 1.5 cups of food in the morning and the same in the evening. She occasionally gets bits of our food, but not that often because she has some pretty severe allergies. The food we feed her is high protein and kind of expensive (again due to her allergies). She is very lean but solid muscle. We take her to the vet frequently and they have never raised concerns about her weight. That first picture might just be the angle because in the second one your doggo doesn't look that bad.