u/Vegetable-Bus1717

Im currently working on polishing the aluminum on a 66’ Cadillac Front grill. I have removed the anodizing and sanded up to 2500. In order i have used yellow pad brown Tripoli, white pad tripoli, white firm white rouge, white loose pad white rouge, white firm green rouge and white loose pad to final clean up.
My understanding is that this Aluminum is an old casting and possibly wont get any better than what I have. Looking for suggestions or recommendations on if i should do something different.
Thanks