As hoped the wine has reacted pretty quickly. For this I double coated some Saunders Waterford 300gsm watercolour paper and exposed it for 46 hours.
I'm very happy with the colours, pale and delicate but with a pretty sharp edge. The wine reacted well on me too so I'm pleased all round to be needing another bottle.
Still waiting to see a noticeable enough alteration in the overall colour cast on the rum and camomile. might need another day or so.
An unidentified weed