To complete the Selena Gomez look, you need;

Head - Zucker Head by me

Necklace - Gold Leaf Necklace by Unknownuser

Skin - Selena Skin V1 by me

Eyes - Brown Eyes by Nutsbar

Hair - Kaori Black by Me

Lashes - Epic Colossal Lashes by Me

Dress - Selena Dress V1 by Me

Boots - Brown Boots by Me