Your sister had a smile on her face on the picture- let that be your "good vibe"........... Iknow the feeling - but don't let it get you down - you meant very well, and she accepted it - so over time it might be a mending point.
Your quilts are gorgeous and yes, the picture of your mom and dad is precious - frame it - it's a keepsake in itself.. Enjoy and keep on making those beautiful quilts - there is a lot of work and love that goes into each and every quilt, whether or not it is meant for a family quilt or a donation quilt - it's giving from the heart - (and hands).