Don't worry about the wrinkles. I pull the decals right out of the tube and slap them on. Use water and dish soap in a squirt bottle. You may want to mark with a marker on the top of the bird down the center to make sure you keep it in the middle of the hood crease. As per the way you have it laying on the hood in your pics you have it about 2" too high. Should have more of a gap around the scoop hole.
Once you have the hood where you can work on it make sure all dirt is off. Also, if you have something sticking up in the clear cut it off and sand it down smooth. I've seen guys have dirt in the hood thinking no big deal, the bird will cover it. Problem is that it more than likely won't cover it. Anyways, soap the hood up, peel the backer off and soap it up too and slap it on. You will be able to move it around until you get it where you want. Once you get it, start from the center of the bird and squeegy away working out to the corners over lapping your last move. If you don't get all of the water out or end up with dry bubbles don't worry because they will go away once it warms up and the sun hits it.
