Halloween Party, has been rejected

Hello friends! I need help,
Your item, Halloween Party, has been rejected(
I will be glad to any advice and comments.

Size 4.25×4.25 inches
300 DPI

Personally I like it. My only concern it is about the date font it is hard to read. The model is included or the customer needs to place another model?

Model included. All design elements from

The reviewer was in a bad mood. Or he found another similar flyer already accepted.

Thank you)

I will do something else)
Is it possible to use elements with unsplash?

From what I know yes Unsplash is accepted.