roof rafts arent straight and valley's not nailed

The roof rafters arent straight and will affect the look of the roof tiles. Its important that they are straight because if they arent the first row of roof tiles will bow. Luckily its towards the back of the house so its barely noticeable. I blame the carpenter for this.

Cant really tell by the photos but ill take a photo of the roof when the tiles are up.

I've sacked the carpenter and have a new one starting tomorrow. Time after time he makes mistakes and always tries to blames others.