Here are some from Animal Kingdom's Tree of Life that I changed with filters to bring out more texture. This man made tree is an amazing work of art and I never tire of it. Maybe these are like you were looking for Pat?
So many opportunities with this challenge! I bought a macro lens last Fall and am beginning to try and learn my way around it - having a terrible time with focus, but here are a few starters for today! Things look good in the EVF but so far the product is mostly wanting. Must figure out how to do stacking too - will eventually use the internal tech on my Lumix G9, but these are not from that camera.