My paintings are unlike most paintings. It is 100% acrylic, yet it is 3D. Taking care of you art is not difficult, but requires a tiny bit of attention.
Use a clean, dry cottonball or a clean, soft, dry paintbrush. Be gentle and dust in between the folds of the painting. Pressing too hard could damage painting. Dust often so it doesn't get a thick layer. Allowing a thick layer of dust to accumulate with in the fold will require a professional art cleaning to prevent from damaging the painting.