Paul Detlefsen Large Original Framed Prints

Hi.. My Aunt and Uncle recently passed away.  In their home are two beautiful very large framed prints by Paul Detlefsen, entitled The Big Moment and Memories.  Each has the brass plaque on the frame..

They have hung in their home since I can remember and are in beautiful condition, frames and all.   I have loved these pictures forever but since I am in a townhouse and my storage unit is already bulging at the seams, I cannot keep these.  Any help on their value would be appreciated.  I need them to go to a good home since I cannot keep them.