I need your feedback.

Hello everyone,

So yesterday i got my first ever upwork interview (never reached this step before), we were 16 people for interview, so basically the task is to create an "emailing" for a product.
The difficulty was to remain in the same style as their designer, they insisted on that...
I finished the work today, and put it on my behance profile then sent it to the recruiter, he saw my work and just said : "I am sorry this is not good i will need to pass".
I really do not bother about it except that i find it very unprofessional of them...
My question for you guys is : can you give me a feedback of my work?
here is it : https://www.behance.net/gallery/239469969/email-design-for-Yay-Nuts