Very interesting surface but due to limited access and huge depth differences relatively hard to scan. Surface was covered with vegetation which caused noise and had to be removed manually. Huge depth differences resulted missing color information on albedo. I fixed biggest issues in Substance Painter during seam removal pass. Majority of small were fixed directly in Photoshop on final texture.
To capture that surface I took 38 images and used them to generate 20 mln poly mesh. I am quite happy with final result and in my opinion definitely was worth that effort.
1k texture live preview