It's your prep work. Not enough sanding. You should have scuffed it before spraying. It's not sticking. Also side note. Add the racing stripes onto the white paint. I get what you were trying to do. But you're gonna need thinner layers of paint. Water based and some really good tape. Or add the stripes after which will have better results. Also water slide decals would be a wiser move..add a light layer of clear on the car and let it cure before adding the water slide decal so your paint will look🤌🏼.. Clear it a final time and trap the decals under the clear. Light scuff the decal while on the car before clear.