A model from the Neil Hamil Modeling Agency and some random guy I saw in a magazine were the inspiration for Rylee and Logan.

 What must he sacrifice to catch the villain who threatens everything?

What must he sacrifice to catch the villain who threatens everything?

 This model was the inspiration for Logan Woods.

This model was the inspiration for Logan Woods.

 This model was the inspiration for Rylee Monroe.

This model was the inspiration for Rylee Monroe.

By the way, when I emailed J. Mark Bertrand (co-author) the image for Luke, he emailed back the below and said he'd been thinking more along those lines--though he didn't have a shirtless one to share with me. LOL.