The figures are good enough and it would be better to associate them with the actual makers names, it makes them more attractive to collectors. Look at the discussions on this board, collectors want to know who designs and who makes the glass. It is what gives glass a personality, makes it collectable and separates it from cheap mass market goods.
Selling them as Murano copies, that is the impression I get from the title - another eBay seller sells Murano St Petersburg figures from Russia, only puts off collectors and leaves you only in the 'gift' market. You will also find lots of discussions by collectors annoyed at the misuse of the word Murano. As to glass figures, most of the lampworked 'older' glass on eBay is not Murano as claimed.