I feel like this can be salvaged. Lots of work, but everything need not be tossed out.
The cape is a bit frumpy, I think a capelet with a peter pan collar would have been a bit better.
Nix the striped socks, off-white tights with a subtle pattern or something would be better.
I like the headdress, maybe curl the strands of hair around her face to it looks less messy and more deliberate.
And do a nice offwhite blouse instead of a chunky sweater, maybe add a Christmas necklace or brooch or chandelier earrings since her hair up.
The jsk is still going to have that endearingly frumpy handmade vibe, but I think it can be a lot more cute when you bring it up a bit with neater styling and nicer accessories.