"As a visual merchandiser, the name of the game is creativity and an eye for aesthetically pleasing elements. Interviewers are interested in learning about the inspiration for your style, your knowledge of the company, and ability to handle difficult customers. Be prepared to ultimately showcase your skill set by styling a display for the interviewer that embodies your artistic flair or critic a display that the company already has."
I had never had to create an on-the-spot display, and while I know that's not a question, that had to be the most difficult part of the interview process.
I stayed true to my own aesthetic but tried to incorporate bits of the West Elm vibe from just researching their website.