My First Cricut Craft

My nephew is turning 5 this weekend so I thought I would put my new Cricut to use and create a door plaque for his room. My sister decorated his room with a Cars theme but I didn't have the Disney Cars cartridge. So instead I went with the classic car from the Mickey cartridge. I really love how the cuts turned out but now I have to figure out what to do with the actual pine plaque I just bought. I know I should sand it down before I paint it with white acrylic paint. But then I need to adhere the paper. I have a spray adhesive I will try out and I also bought some low-odour matte finish to protect it when it's done. I'm just hoping it will turn out okay because I worked really hard on the car. I love the paper I used and I'm hoping my nephew will like it just as much as I do.