up and down between color / product design

As is often the case, people have to climb on an insecure chair or a faraway bed   to reach for the clothes on the annoying upper shelf of the wardrobe. It’s neither convenient nor safe. My design is aim to solve this problem. The user is able to roll down the upper shelf via a hand-cranked device set on the side of the wardrobe until the shelf is suitable for her/his height. As for the composition, the primary colors distinguish each functional zone, adding beauty to the wardrobe at the same time. (The wardrobe is 250 x 60 x 210 centimeters.)