Instagram post Promotion

Hello, im the owner of an anime account with 9.100 followers. I just received a 30$ coupon from Instagram to promote one of my post. The problem is that I can only promote the post that Instagram selected, which is a fanart I didn’t make (but in my caption I credited the original artist). Can I promote that kind of post?
I’m scared that my account might get deleted since it’s a fan account.
Thanks in advance

If you are giving credit to the original artist and he has it on a public page you have nothing to wary about