Hi, sorry for the late reply.
Happy to send a cleaned up, hi res scan of the commission - provided it's only for private use. Would you be wanting it for any particular purpose?
I retain the right to use any artwork commissioned privately for my own use - in my portfolio, in books etc. Private commissions wouldn't be offered as prints though.
Copyright for all artwork always remains with me. I'm pretty much targeting my commissions at fans of my work, or fans of sic-fi/fantasy stuff. So there shouldn't be a need for copyright/usage discussions.
If you want artwork for another purpose, or for commercial reasons, then drop me an email and we can discuss it.
Cheers,
Rob