Hello. Thanks for mapping.
A remark, You tend to oversize the buildings you map. Stay within the rooflines. These huts have an overhang, so they show to be bigger than they are. Zoom in (IDeditor) till at least 40 ft. to have a good view to map a building.

Objects without a roof (shadow on both the in-and outside or no shadow at all) are not to be mapped as a building.

Best regards

