If you're going for oldschool you'll wanna switch out the wristcuffs and socks for ones with torchon lace instead. Under the knee socks with a lace trim would look way better.
I'm a bit unsure about the shoes honestly. If you have them already then they're probably ok but I feel like either black or white chunky mary janes or rhs would be more appropriate for oldschool.
For headwear a rectangle or circle lace headdress is a good option.>>9445615
This overall looks good but I'd be careful about using wine IW with wine meta, the shades are a little different (IW is usually more unsaturated maroon compared to meta) and the socks might look weird against the dress. If you're gonna use wine heels anyway I think ivory otks or lace tights could look good.>>9446137
I think a polka dot cardigan in either red or blue would be really cute with this. Secondhand etc is easy to find on yj/fril/mercari if you want to find something additional from the brand to work with.