Hi, and welcome again to OpenStreetMap! Your edits look good overall, but since you've asked for review, here are a couple of tips:
- It's best to avoid overlapping buildings and parking lots. Feel free to improve/adjust the building outlines as necessary to prevent this. More accuracy is always better.
- In the iD (online) editor, you can press "Q" to make shapes square.
- It looks like you've added a couple of commercial landuse areas to try and indicate "holes" in parking lots. A better way to do this is to draw the hole outline, then select both that and the outer parking lot, and press "C" to combine them into a multipolygon relation. Let me know if you want more info or explanation on how these work.

As always, thanks for your contributions!