Wow, those quilts are beautiful! You should be very proud. I have 2 nephews and 1 niece I have given things to and only ever hear from 1 nephew. My niece wanted a bag made out of skulls this past June. Made it, sent it to her and have heard nothing yet. I don't expect to either. I know it's hard to not get a TY or something, but they say it's the thought that counts.
BTW- What pattern did you use?