I think someone has mentioned the pink is hard to match because it's not the normal pastel pink lolita brands normally put out. Every coord in that colourway that I've seen uses a white blouse. Maybe go with that, white legwear and then match your bag to your shoes and repeat the colour once on your head (ie- a hairclip or something). You could probabl do black or brown shoes/bag/hairclip. I want to suggest gold too, but I'm not sure if it'll clash with the print. For hair, if you don't have the matching headpiece, I'd recommend a floral hairpiece, preferably one that has some matching wine in it (you can detach one of the waist ties when you go shopping so that you can match them irl). Even if you can't find a close match, a group of close-ish wine-coloured flowers with some other white/yellow smaller flowers, glued onto a headband should work fine.
If you want more options than just white blouses (which is actually quite plentiful, you can change up the tone of the outfit by changing from short sleeves to long sleeves, princess sleeves, high neckline to wide neckline, etc etc), I'd suggest taking it straight to a tailors and getting them to make a blouse in the exact pink or wine that matches it.