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This may be appropriate.  This was a goof by a worker that was skimmed off with a trowel, and awaiting a fill coat after drying.  I asked Allan if this could be replicated, no problem.  If we do this a bit sparser, or tad lighter, it might be just the ticket.

Understand that when I took the photo the material is still wet, AND I also used an angle that would display as much of the texture as possible.  I also bumped the contrast some for viewing.

In other words, it'll blend in a bit better than is portrayed in the image.