Buncha minor tweaks here, so I'll list 'em off:
-adjusted the boob curve a bit, they've got a bit of sag to 'em usually. Best to think of them as balloons with sand in them, rather than as plain spheres.
-tweaked the leading edges of the shirt-straps to have less of a solid outline, both to soften the border between the shirt and skin and imply it to be a slightly-thinner fabric like t-shirts usually are
-tweaked the waist some more, bit boxier but feels more in-line with the rest of the picture and help lead into where the thighs would be
-tweaked the waistline and outer curve of the skirt, the former to imply a waist curve and the latter to have it a bit closer to the legs. This one's more a personal choice tho.
one thing you might want to consider is changing the belt buckle size or color, yellow and white tend to blend into one-another since they're both pretty bright colors. That's more of a suggestion though.
EDIT: also, I'm curious, is the white line on the glove supposed to be anything?