Hmmm ... didn't think of mold. It's hot in there, but not damp; and nothing else has gotten (visibly) moldy in there. Believe me when I say it was a very hazy day. It was a Philadelphia in Aug day, not June.
Looking at the samples again I think what you're seeing is oil from my hands, I must have been sweaty when I last handled them.
All things considered, except for the glare, the second picture is a decent representation of the wood and stain.