Hugelculture development in the winter

Thought I'd share a new video from my Edible Acres youtube channel where I document a lot of permaculture oriented projects.  This one is about developing hugelculture and raised bed areas during the winter months...
Would be great to get feedback from people here!

Awesome video, I have been enjoying your videos a lot and totally stole some of your ideas

Do you keep adding organic matter to the hugel each year? They also seemed to be in a more shaded area, would squash grow there?