The colour is good for antique lace/crochet whitework, it is a little grey but good and clean. I have looked this over and cannot see any holes or damage. On very close inspection I found a small tea stained area which I have shown next to my finger for scale in the last photo.
I would say it is better suited as a throw or bedspread than as a curtain. It is really well made and would make a beautiful addition to any interior design project - a great authentic hand made piece.