Answer: Generally you have to expect when you mirror shine the color to look a shade or two deeper than the rest of the shoe (more noticeable in mid colored shoes (burgundy- tan -brown-blue-green))!
Now in your case and judging from the given color and the fact that you didnt achieve a mirror shine i can suspect the the dark spots are from water and solvents!! you can clean them with renomat or similar product to make it faster but even if you leave your shoes the water ll evaporate and the dark spots ll fade away!
I hope i helped you a little bit!
This Q&A was first posted in our Official Shoe Care Thread.
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