Hello, and thank you for your contributions to buildings in High Level.
It looks like your traces of the buildings have some odd angles in them, whereas in the ESRI imagery it looks like the buildings have 90 degree angles.
I thought it might help your future mapping to tell you about the "orthogonalize" button in the iD map editor: with a building selected, you can press the q key to make all the angles be 90 degrees. It greatly speeds up mapping to use this shortcut!
Have a nice day!