I had a little squizz at your listings. 
I love retro stuff 😉

That being said, I do note a listing error with your crochet blanket listing. 
(1) it’s NOT a granny lap blanket. It’s either a shawl, or a bed foot end throw.

(2) Hard to see if there are in fact 100 separate circles as listed. That would mean 4 rows of 25 circles. Which I can’t see.

(3). You’ve claimed them to be 45cm circles!  Mate, they are circles of 5 rows of crochet! They might be 20cm circles, at best, if not smaller.  Measure the diameter, not the circumference. 

Other than that, I think your prices are competitive with other similar listings, and with current antique B&M shop sellers. 

You could always offer pick up as an option.