Structure of Acts 2:41-47

Any tweaks to make to this chart? I’m just starting to look at this. The chart has been adapted, though this image below is mine. Click on the image for a larger view.

The highlighted line is the focal point. The outer pair A/A’ are usually significant as well. How best to relate them? What other refinements can be made?

Chiastic structure of Acts 2:41-47

What do you think?