add a drop or two of opaque red to the trans or, make more passes with the trans red. the transparents are not completely transparent, they contain opaque fillers that when built up will achieve a certain level of opacity.
judging by the purple, although hard to tell from pics, it looks like it is a tad light/patchy so i would guess you just needed to make more passes.
you could also use a complimentary color to do the shadows on the orange like a trans purple. or add a few drops to the t red.
either way, experiment and see what works for you.
02-11-2011
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