Patrick Nagel prints probably for sale...

I'm (sadly) looking to sell the last two of my once extensive Patrick Nagel print collection. The first one is entitled "Mirage", and is double-matted and framed. From research on the intarwebs it appears this one is fairly rare/sought-after although it is not a signed/numbered print.

The second is from Nagel's Playboy Portfolio collection and is considerably more common compared to "Mirage". It's in a standard glass frame, with no matting. Not signed/numbered.

Anyone have an idea of the value on these?