I made my own jewelry and I also sold it on Etsy. Just go to Hobby Lobby, Michaels, or Jo-Ann's. They all sell crystals and other beads. Another way to go is to get a ribbon trim that has acrylic beads hanging from it that look like crystal beads.

Idk if you're thinking to change to a color, but you could spray paint the 3 parts in light to medium shades of same hue: blue or yellow.... Or maybe 2 yellows with 1 grey.

They sell decals for walls - I picture organic black strips placed vertically.

Or place strips like this.

Uttermost 21108 Alita Champagne Metal Drum Pendant · More Info

You are very welcome!

I can't find the black strips, but here's black or grey triangles. An accent color of red could be cute... what's your color there?

Triangle Wall Decals, Gray · More Info

Harlequin Diamond, Black, Wall Decal · More Info

Ha! forget the lampshade and put this on a wall or 2!

Cherry Blossom Tree, Wall Decal, Black/Gray · More Info

I'm enjoying my browsing, and so I found clear vinyl with flowers, actually meant for tile. Probably would stick to your lamp shade then... ya think ;-) -Deb

Hibiscus Black RETile Decal, Clear Background · More Info

Paint the middle section black or a color that will match your decor.