I found painting the beads a challenge, until I found an easy way to give them depth. For each color I mixed a light and a dark. I'd paint the dark of the bead and then dot the lighter color as a highlight.
(If you click on the above image and zoom in you can see what I mean.) Keep in mind these painted beads are quite a bit smaller than in real life.
On the collar there are two horizontal beaded bars. The actual collar has single different colored beads for the horizontal bars. A single red bead next to a white, next to a yellow, next to a ...
At this scale (the painting is 32" X 21") that would read as a jumble. I decided to take the colors from the flat rectangular piece below the collar and use those colors for the bars.
There were also sections of the earrings which had individual beads next to a different colored bead. I decided to match the horizontal bar colors I created.










