Fantastic study Jamie, the amount of details great, and it looks like you've up-ed your rendering skills too.
But if you want to make it a little bit more than a study, I do suggest you add a distinctive focal point. Its not hard, in this 2 second paintover I just added a blur mask and defined the edges on the bust. But obviously I'm not commending the use of cheats like masks haha.
Just food for thought:)
Keep at it man, and I appreciate the poem you posted too, suits my mood atm.