Queen's tears, Billbergia nutans, is one of the ugliest plants in my garden if you are going by leaf type. It always looks to be a sickly color and mottled. But that is the type of leaf it is. It sounds like yours may be about as healthy as they get.
If you are growing as a houseplant they need lots of warmth and lots of light. Slow down the watering for a period in early winter.
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~Tina


Drama Free Zone.
What every gardener loves the most, Begins and ends in rich compost. (Tina)