Welcome to OSM!

You spotted buildings in the imagery but the footprints you mapped are inaccurate.

When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint.  Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag.  Take care to make contributions that others can build upon.

Please do not snap the corners of the buildings to other buildings or features such as roads and paths. In the iD Editor, hold down the `Alt` key to keep nodes from snapping to other objects and accidentally connecting. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide.

After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) 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/