To be fair, a lot of the parts where people actually live were painted red, as is usually the case with cities. I'm going to be honest, this isn't a vote of Confidence in Cameron. He didn't win, not by a long shot. He was against an incredibly unpopular leader of a party who has been in power for 13 years, and even then, he could only scratch together a Coalition government, and 37% of the vote. When the Labour party had the same situation 13 years ago, they got nearer 60% of the vote.
As for Brown resigning, I think there is more strategy then we think. Yes, it could have woo'ed the Lib Dems, but look at what his resignation did! It spooked the Tories into giving a referendum on the Alternative vote. I'm not saying that the Labour party did this for some principled stand on electoral reform. Rubbish! But I think they have known their position for days now, they're simply trying to deal as much damage to the Tories as possible, while giving the Lib-Dems a boost; both of which make long term sense to a labour strategist.
And then, even better, the Labour Party is out of action for a few months as it changes its leader. It'll be back in time to face any elections, and to form a still considerable opposition. The Labour party'll be back, and the Tories...Well, lets hope they do some good over the next four years, because I'm not sure the public are entirely convinced.