It's okay with me if someone wants to illustrate one of the lyrics of a song - just be sure to reference the lyric and song title when submitting the photo (and again, not IN the photo).
On the two photos submission, I wouldn't mind, (I've got a few ideas percolating and haven't decided which would be best), but I think that could get a bit sticky with the voting. It would also be a lot more work for Charliedog.
An alternative for two photo submissions (if you all would like to show off your other ideas) would be 'non-entries'. You would post your own (rather than Charliedog, so they wouldn't be anonymous), and mark them NON-ENTRY or NE. The photos wouldn't be in the contest, but folks could comment and give you feedback on them. (If everyone wants to do this, we might need a separate thread for Non-entry entries.)
That's my two cents...
PS Hounded: I believe the rule is none of your dogs in the photo. You can always steal a friend's dog...