help pick the cover for new book

This book, barring any unforeseen calamity, should be ready later this week. Would you give me your opinions on the cover you like best.

Also, here is the book blurb... I will take suggestions and recommendations.

Janice Rosenthal is entering her eighth year of teaching, but it might be her last. Never before has she had a student as unruly and insubordinate as this one. Andrew Bryant is the terror of seventh grade, a student known for driving teachers to the edge of retirement, and he is in her class.

How can Janice--and the rest of her students--make it through the school year with such a disruptive force in the classroom? Her only hope is to try to break through the orphan's defenses, to pierce a wall that no other teacher has ever scratched.

When she discovers Andrew's secret, two lives will be changed forever.