I prefer a regular paste wax, Min Wax finishing wax, Butcher's wax, etc. for
application to wood finishes.
Frankly I'm not at all sure what a wax/alcohol application is going to do to
your finish. At the point you are now at you should have already cleared up
the color problem and should only be concerned with finessing the surface of
the finish rather then being forced into unknown territory where you have to
do something that may cause you even more problems.
This whole thing of having dye in every coat of shellac applied is not one I
would have taken. A glaze coat maybe, but not every coat.
I can't see what you have now so I can only guess at what can and can't be
done to fix whatever you have a problem with. Frankly all I can do is
suggest that either you not consider the job as in it's final stages and
work on getting the color even then applying some clear finishing coats that
can be rubbed out or write it off as a lesson learned and just go ahead and
rub out what you now have, and, of course, wish you good luck.
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