Sedan Ducktail installation problem

[mr_eraserhead]

Fellow yarisworld members,

I'm from the Philippines i own a Extreme black Vios/Yaris Sedan and i need help in my newly installed ducktail. Its fiberglass molded form the XX limited edition grade vios/yaris ducktail. After purchasing the ducktail from a local store, i had it body colored in a auto paint shop. After installing the ducktail, i noticed that the fit of the ducktail isn't perfect! There is a gap in both ends of the ducktail! What can i do to solve this problem! It really bothers me everytime i look at it. I want it look perfect

As you can see from this angle it looks fine


But when we look at the sides,


The 3M double adhesive is visible


I need your help fellow yarisworld members!

what can i do to repair this? Someone told me about a sealant that can cover this up. I need your help. Thanks!