Hello. Thanks for mapping.
Please map more accurate and follow the rooflines more accurate. Square each rectangular building.
Shift multistory buildings to their footprint.
Check this out please
On this task, the high-rise buildings are often incorrect mapped.
You can see both one or more side walls and the roof. The Imagery is taken under a certain angle, so you can see more .
Often all visible walls and roofs are mapped as 1 building.
The correct way is to map the roofline and move the whole object on their footprint.
See this video.
https://youtu.be/dsfUcslLtVc?si=bEHwRl1sxDI_GA0H
Best regards