I don't know why it can often be like this. Some kind of inability to knuckle-down to one style, married with an easy fatigue, plus a bit of the 'grass looks greener on the other side' thrown in for good measure. Agg!
Below are some outtakes of the whole brain-busting process. I like 'em all!
Above: A version with a traditional ink look, where I thought I was going to keep the lines black.
Above: An abandoned digital version with blocked, clean colours - I even had big trouble deciding which type-style to opt for.
Above: Thought about abandoning the line work and keeping just the colour flats. Also tried adding a bit of grit for effect. It all came to nought!
Above is the rough that started it all...