Patterns in my trousers

I have been working on ideas from the walk, here is a sketch of the lichen like patterns in my trousers.

I went on to interpret these using natural dyed fabric and stitch. The top picture is silk satin organza, dyed with weld. I've tied and capped it and then dyed it with chlorophylum. The pieces that are appliqued on are silk organza, dyed with indigo. I have machine stitched it.
The one below is silk velvet crumple dyed with weld, chlorophylum and tannin. I have used cable machine stitch on it.
I'm thinking of crocheting some lichen into my trousers!!