It looks like somone has repainted your hood at some point and done a bad job. I can see lots of orange peel and not factory orange peel. It looks like they didn't mix the paint right.
If you have some place warm enough (60 degrees plus) i would sand the hood down to the primer and repaint with some touch up paint for now. If you do it right it would be hard to tell that it has been repainted with crappy paint.If you use rattle cans let them sit in warm water for about 30 mins before you start to paint and that will help with the orange peel. You should be able to get all the stuff you would need for about 10$ or so.
