Nice to see such improvements! Great work!
I'll suggest a change that I think would make some newbies understand bitcoin addresses faster: remove the last selected address from the main window. Make the user always have to click somewhere to open the list of addresses, even if it only has one.
I think that would be good because frequently I've seen people who think that address which is being shown there is the bitcoin addresses of theirs. Like if there were only one, as a bank account number. This happens frequently.
By not having this one address on the main page, they will have to search it somewhere else, and there they will see that there is space for an entire list, with buttons to "create new" and all that.