3D Printed Spoiler for 5 gen prius

There is a spoiler for Camry, I like that one and I wanted to make something like that. I printed 8 parts and combined them later. Material is Petg. Also, I will use 3M double sided tape for the bottom part. That's why I made bottom surface area big, because I wanted it to hold the car strongly. I Haven't fully combine yet
What do you think? Did it even look good?

Off course aerodynamic is very important but I dont have much information about that and I did not do any simulation test.