This one contains UV white and black cotton, warp cotton and hemp. At the base of the sample, I had another go at vertical slits and patterns. Again, this part is okay but I think the proportions need to change to make it more zingy and crisp.
I like the idea of the tapestry having one view under normal light, then changing under UV light. To this effect, I could make a distinct black and white design to be viewed under normal light, and also weave it extra white design, obscured under normal light, but which would only jump to life under UV.