You are right that the extra contrast works great on the dog, Noa, but the tennis ball is now overexposed. If I would apply more contrast to the image I would make sure that the tennis ball isn't overexposed.
Damn, is this proper English by the way!? :er: Never talked about pictures in English...
Thanx everybody for the replies! What do you think of this version? The only 'problem' is that the shadows between the ferns are too black, which means that there is no detail at all (don't know the official English word for it) And still the tennis ball is too blown!