That is really stunning pumpkin!! I just took a class on Craftsy by Cindy Needham on this type of quilting and your quilt reminds me of what she was teaching. Did you happen to take her class? She'd be so pleased with what you've done. I have a long arm too and seeing this makes me want to hop on my Juki for a little while and make one of my own. But I have some customer quilts to get done first. I recently completed a wholecloth on the longarm and it turned out pretty good, but I'm thinking it might have been easier on the dsm! And I wish I'd watched her class first
Anyway, your quilt is just beautiful!!!!!~and I'm sure you can do this on your LA as well. Give it a try