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.

 

Pretty simple.