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Here's a great example of some beautiful artwork getting appropriated, altered and re-utilized in a similar but different fashion. Sam Savitt painted a dynamic image of the Lone Ranger and Silver here, and while the Earth tones are not bad, the original still has an excitement from the more vivid colors the revision lacks.
Since the Redmask was a rip-off of the Ranger to start with, it seems natural enough that Bill Black and his crew would make use of Ranger artwork, but it seems a tad cheesy.
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Here's a treat. This is apparently Savitt's brother Al posing for the original Lone Ranger cover art. Here is where I stumbled across that photo with a lot more on Savitt along with lots of his great cover artwork and more behind-the-scenes stuff.
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