This is a very cute idea! Some thoughts while playing for improvements are:
The background could be a little more subtle, currently it's too contrasting against the beads and the text. I'm also very curious to know if you'll add different colors later! Maybe with a color change button next to the bead selector so we won't have to go through all the colors in each individual bead. It would also be so cute to see the final bracelet in a closed loop, but maybe that's harder to implement.