Take care of images standardly. They are intended for interiors. Do not
expose them climatic influences, direct sunshine, humidity and excessive heat.
If the image is dust-covered, attend it lightly with a dry clout or a brush. The
applied canvas is elastic but relaxation, bulging or folding of the image
stretched in the frame can happen if climate condition changed. Move the image
into the room with standard climate condition and the image will be stretched by
itself into the original shape. That is all valid if the blind stretching frame
construction is not damaged.