Topic: Murano duck - but who actually made it?

[chopin-liszt]

 
I'm not very good at this "spot the difference" game, and the photos are from different angles. But the serration on the wings of yours to show the feathers is rather a major difference.
The number of colours used is different, and I think yours are rather better executed, with fades.
These are differences of design, rather than a bit of variation on how something worked out.
Both are rather wonderful ducks. Quite high end, in my opinion. 

[Lustrousstone]

Wot Sue said. Definitely ducks by different makers

[Ekimp]

Out of interest, this pair of ducks also have a Formia Label and look to me more like Lambden’s example than the op’s or the Formia labeled example in glassobsessed’s link. They have crimped feathers: https://www.liveauctioneers.com/item/48019817_pair-formia-vetri-di-murano-art-glass-ducks

The op’s looks better quality to me than the one in glassobsessed’s link?

I like this one, also with a Formia label: https://www.liveauctioneers.com/en-gb/item/56344123_vintage-murano-art-glass-duck