The Yule Log centres on a small mouse set against a wintery backdrop, positioned with a decorated branch adorned with ribbons, tags and holly that signals a festive moment. The subject is presented simply, with the surrounding space kept open through soft washes of pale blue and green, allowing the figure to emerge clearly. Subtle detailing in the whiskers, fur and accessories is combined with looser passages of colour, giving variation across the surface. Working primarily in watercolour, Walker combines careful draughtsmanship with a restrained, earth-based palette. His work sits within the tradition of British wildlife illustration, though distinguished by the introduction of gentle narrative elements, often linked to seasonal themes, which place his subjects within a recognisable yet lightly imagined setting.