Nice! Be careful with the sweet potatoes, they are awfully high in calories and in some foods, contribute to weight gain. Would not worry about peeling them. The skin is healthy. Just don't feed with the growths.
The pumpkin and other veggies and fruits you are feeding, as well as the oats, should be providing a lot of fiber, so not sure you'd need the bran. How are her poops?
She may have some seasonal allergies or food allergies hence the intchy butt. Any ear issues or other itching?