I like this - I think you brought out the fat juicy feel of the raspberry ( I have tried some similar shots and my blackberries just looks - black ). I am not so sure about the dark patch on the left though - with all the colour on the right and nothing on the left if feels strange to me - maybe you could try rotating the image so as to have the black at the top perhaps? Since there is no real orientation point on the photo you could get away with this