Issue Photogrammtery for food

Hey Everyone my name is harsh gupta , I was doing photoshoot for food photogrammetry 

First i tried to shoot photos without flash with apperture f/6 and picture was taken very close from object but allignment was not good

Then wihtout flash with very close distance that was better than having flash on but that too was not better

then   with some distance maintain and without flash then result were better than the images taken very close from object