Thank you for your contributions! Overall the changes look good.

On a few occasions, you marked several buildings as one building. 
Here's one example: https://www.openstreetmap.org/way/1418854621

These are in fact 3 buildings if you look closely.


It's sometimes hard to tell them apart in the densest areas, and the contribution is useful even if not fully accurate. So you don't need to fix it unless you're willing to. This is only for your information.

Happy mapping and thank you!
