WHO DO YOU WANT TO SEE ON THE COVER?

So I have two models that are super awesome and they represent the main characters from Disarmed/Damaged.
For the book cover of Disarmed I had Elman Espana who in the book is Kaden Alexender.
​He was lonely...  see below.

Or so, to me he seemed lonely. The cover turned out great and no I didn't use a pro designer but I got tons of compliments on it!
I always thought that it was missing something or more like someone. Kyle, more specifically who is Kaden's other half. Aww... right?
So I want everyone's honest opinion because I have someone who is great for Kyle and she would also love to be on the book cover. 

Models: Cassandra Licause (Photo taken by Lee Baxley) & Elman Espana
(Kyle & Kaden.)

Not to mention the story is written from both Kyle and Kaden's POV so it only makes sense to have both or no?
What are your thoughts?
Comment below if:
1. Only Kaden
2. Kaden & Kyle
​Or?

Thanks for participating!