Hi, you generally identified buildings visible in imagery and correctly tagged and squared the vast majority of them, however some are not as accurate as the imagery allows e.g. the footprints in the North, and a significant ammount share common nodes when it looks like they shouldn't e.g. the footprints in the South becasue a shadow is visible between the roofs. Consider that you are looking at the roofs of buidlings but mapping their footprints; unless you have reason to believe that buildings share a common wall, please map them seperately.

You ended up adding duplicate footprints in the East. Save your contributions every 5-15 minutes to reduce the likelihood of this and to preserve your work in case of a technical error. (I resolved the duplicated footprints in Changeset: 171939780).

The three footprints in the SE represent one building who's roof has multiple colours. 

Please do not connect the corners of buildings to other buildings or features such as highways or residential areas. In the iD Editor, hold down the `Alt` key to prevent your cursor from snapping to existing data and accidentally creating shared(grey) nodes. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide.

Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/