Hi, welcome to OSM. Both footprints you added here represent buildings visible in the imagery. Good job identifying them as the scene in ESRI is slightly hazy here and the ground nearby is similar to the roof colour. I think these footprints are generally oversized. Consider how the scene is lit and how shadows are cast by objects in it. Do not incude the shadow when obtaining the size and shape of footprints. You can scale selected features using shift+(-/+). See how I mapped these here https://osmcha.org/changesets/170034267 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/
            ---
            #REVIEWED_GOOD #OSMCHA
            Published using OSMCha: https://osmcha.org/changesets/169748865
            