i would start off by greeting the student and ask how you can get involved.
“Good afternoon *name*,
I hope you’re doing well. I wanted to ask you about being featured in the Goal page in the yearbook! *explain what you’re doing and why you would be a good fit for the page, you can just say that you’re doing this and think it’s pretty cool to do* Thank you for your time.
Sincerely,
*your name*