close- I put "washes" of colorants on after bisque, then spray (or brush) with glaze- in this case applied rutile wash around most of vase, streaks of iron wash both under and over rutile wash (one or both did the yellow). Then vertical strokes of copper glaze (green); cobalt glaze (blue) filled in remaining space- glaze is Helen's Crystal (Snair), washes are colorant mixed with water. I also re-fired this one, sprayed Helen's with no colorants- came out much better.
I'm kind of partial to this poor lopsided thing (the bottom cracked and fell off- too thin- I glued it back) ... re-fired this one too (and re-glued bottom ) I like the colors (used washes) and lots (maybe too many) of crystals
yes- crystals are working- not always, but certainly enough to keep playing (and re-firing! )