Banged up vintage photo - where to go for cleanup ?


Kraton 6S
My grandmother died in a car crash when my mum was 12. She never had any pictures to show us until very recently when one of her sisters got a hold of a bunch...

One particular picture is very beautiful, but oh man it's in bad shape... I scanned it at 600 dpi (is that good enough ?) and there are dots everywhere, corner's torn, one eye is missing a piece...

Where should I sent it for restoration ?
If its just one photo that is not super personal, try kindly asking on Reddit. Folks on there love the challenge of fixing photos.