Stolen Color II (The Castle's Ruin)

My second entry to the challenge #18.

Rules are here:  fav.me/d7guprq , made by -
Thank you for the idea to avoid colors - It's interesting, however, it was indeed a challenge for me.

Gallery is here:  mandelbulb3dteasers.deviantart…

M3D v189 DECombinate [_planeFold, Quintic // FernTransform, SphereIFS, RandCubesIFS], own picture as map.

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