OK, I never really paid much attention to the shape as being more "round" but I see what you mean now. Personally I don't mind it being a bit round and I am more troubled by the asymmetrical handles. But given the fact that these are hand made and the Kelly handle is the most difficult part of the bag, it will inevitably have some variations.
@xxDxx I absolutely would not accept the flat D rings, which I have seen on many bags like yours. You can't attach the strap easily on a flat D ring. I would send it back and ask it to be redone.