Hi, and welcome to OpenStreetMap! Since you requested a review, I looked over your changes here. Looks great overall! One issue is that you've added duplicate crossing nodes at Broadway/H Street. Also, while I and other mappers are happy to answer questions and review work, you should add data as accurately as possible on the first go and double-checking things yourself, where possible.

Let me know if you have any questions, and thanks for your contributions!