I've looked into this before. There are several ways of achieving this kind of effect. The first is simply using translucent paints. The second is to use a 'glaze' that has to be fired and forms a permanent bond with the glass.
The second gives less consistent, but more permanent results. And is very, very technically challenging.
I am fairly certainly that the large lines are the lead came, and the smaller black lines are an opaque glaze. So the head and hair, for instance, are a single piece that was probably a peach-colored glass that was then painted with glaze--the hair is a built-up color from the base--fired, and soldered into place. The garment appears to use a different color of glass as the base, with built up shadows, fine lines, and (I think?) a white glaze for highlights.
It's an artform that requires a high degree of technical mastery over multiple different elements. It's a pity that it's so rare to see this kind of work anymore. Then again, I'd never be able to afford it, so...
Did you end up taking a crack at making anything? This style is so beautiful and it's the first time I've seen it.
My spouse has done stained glass; they did some really nice work for a novice. But no, I haven't tried it.
There used to be an exhibit of stained glass at Navy Pier in Chicago; there were some fantastic examples there that combined color, the texture of the glass (including pieces up to 2" thick), and glaze to create incredible depth. If the exhibit is still there, it's worth the trip when you're in Chicago.
Wow I had no idea Mucha worked in stained glass! It makes sense, a lot of the art deco elements translate really well but this is absolutely stunning. Thank you for sharing!
Wow, I'm not sure I've seen stained glass so detailed before... I think I need more to look at
I've never seen that level of shading and different tones in individual panes of stained glass.
