There is a lot of variability in the high-silver reduction glasses - and - it takes time to really get the feel for these glasses. But here's a quick look at Double Helix's Iris.
Iris is a reduction glass, and appears to be capable of a whole rainbow of colours and a bright, shiny finish.
Here we have 2 spaces (with a clear core) and a small urn shape, with dots and a lip and tip in Iris.
I didn't do anything special except reduce them. They are dark, but reduced very easily. You can see that the colours range from green to gold to purple to magenta.
So what are you going to get from them? Try it and find out, because everybody's mileage varies.