Hello, you requested a review.  First thank you for contributing.  OSM seems extremely intimidating at first, but reality is very few people are contributing in the US so each of our contributions are impactful.

Alright review time.

Be careful not to attach buildings to roads.  The only time this is acceptable is when there are roofs for like gas stations and drive-throughs.  If you accidentally attach something, hit the d key to detach it.  You can also hit the undo button or ctrl-z.

Be sure to hit the Q key on rectangular buildings to give them pretty right angle corners.

I also recommend zooming in a bit more when drawing, it makes it easier to position buildings correctly.

In Id (the web editor you're using), you can search for the most common businesses brands (Giant, Michaels, Starbucks, McDonalds, etc) when choosing an area type and it'll fill out more information for you.

I have already cleaned up the buildings for you.

Please keep contributing, even just leaving notes that a certain business is open or closed is really helpful to people who are mapping states or countries away.