tree stump 3d model

Using the provided photo of a tree trunk, generate a CNC-ready shallow bas-relief. Convert the image into a flat relief with a maximum depth of 6 mm (single-sided relief). No undercuts, no overhangs, no enclosed geometry. All surfaces must be machinable with a 3-axis CNC using standard ball end mills. Emphasize bark texture, growth rings, cracks, and natural wood patterns using smooth height transitions. Background must be perfectly flat. Clean, continuous topology suitable for STL export and CNC milling. Avoid thin fragile details.