The sketch is of a high altitude trekker. The sketch is a very basic one as per the contest brief. I've tried to incorporate the nutritional angle subtly which may not be very clear in the images. It basically depicts the vitality of our protagonist who maintains his health by virtue of his good food habits. Also, there is a touch of nature which is an integral part of healthy living. Feel free to clarify any doubt regarding any particular part of the image if it is not clear.