How does she regard your grandmother's compositions?

I'm lucky to know, and it helps me put mom's criticism in perspective. When I get criticism from my mom (She'll comment on what draws my eye, and she's right.) Then she speaks of grandma, who was a great teacher but "one step short" of being a great artist. Then there's my dad the art teacher. He is an affirmer and never critical, so I don't know his opinion on my compositions. He just wants pictures from his 80th birthday party.