Welcome to the Quilting Board!
WOW, those definitely are not 1/4" long...they are perfect!! It's beautiful and you have done excellent work!
Anne - I am a total novice when it comes to a question about "hand quilting". BUT - professionally - I was in Quality Assurance and I really would say - "Looks perfect"!!! In my opinion - I would wish I could do work as exacting as that. I LOVE IT!!! (could you tell?)
I don't know that much about hand quilting, but it sure looks good :D
What I am amazed at each stitch looks to be the same space inbetween. Excellent job...I would say you have mastered the art of hand quilting.