You can't just say there is a God because well, the world is beautiful. You have to account for bone cancer in children. You have to account for the fact that almost all animals in the wild live under stress with not enough to eat and will die violent and bloody deaths. There is not any way that you can just choose the nice bits and say that means there is a God and ignore the true fact of what nature is.
Stephen FryPicture this scene. A critic arrives at the gates of heaven. 'And what did you do?' asks Saint Peter. 'Well', says the dead soul. 'I criticised things'. 'I beg your pardon?' 'You know, other people wrote things, performed things, painted things and I said stuff like, "thin and unconvincing", "turgid and uninspired", "competent and serviceable,"...you know'.
Stephen Fry