To lessen the appearance of rough skin after healing, once the scab has fallen off naturally, use cocoa butter.
Putting it on in the morning and at night for the next few months helps your skin stay nourished to return to normal.
It was definitely overworked, but scabbing in itself is not a bad thing.
Heavy scabbing has a lot to do with how you care for the tattoo in the first 24-48 hours after getting a tattoo.