I don't have/use a LA, but here are my thoughts...the fabric in and around the stars in the blocks seems loose, as though the layers weren't firmly stretched before quilting began, or maybe the quilting wasn't started in the center and worked outward from there. Maybe it's just a high loft batting? The quilting stitching looks fine, what I can see of it in the photos.
RE feathers, first of all, you've surely heard of "The Little Engine That Could"... "I think I can, I think I can, I think I can..." Think positive!
I've found, using my DSM, that I can lightly draw the feathers out with chalk so I have something to follow and it makes the job much easier. I've also found that, for me, it's much easier for me to stitch toward myself than stitching it away from myself, meaning that I would have the tip of the finished feather facing me rather than the stem. I practice on scrap for a while before beginning to stitch on my project to get the feel of what I need to be doing.
When you're finished, DON'T LOOK SO CLOSELY! lol It's bound to have places where the stitches overlap, etc. Nobody is seeing that except you, unless you're doing a quilt for show!
Overall, it's a pretty quilt!