'Finished' should be changed to 'Complete' in the 'State' bar and anywhere else in the UI, in accord with rtorrent itself. This is also the wording in uTorrent, which I believe is your design basis. This is also just generally the better word in English (British English this is), at least in my opinion.
I know this is only minor, but it all adds up 'eh!
I know this is only minor, but it all adds up 'eh!