This is a framed watercolor painting depicting a still life composition related to wine

This is a framed watercolor painting depicting a still life composition related to wine. The artwork features several elements including bottles of wine, wine glasses filled with red wine, grapes (both purple and white varieties), and wine corkscrews. There are also what appear to be snails incorporated into the design. The background has a textured, abstract quality with some visible script or writing. The painting is signed by "KLAUS D. SCHIEFFLER" and dated "1996". The framing is a simple green wood. The image of the painting is taken from an angle, looking slightly down and to the right, with a white piece of paper or matting partially obscuring the top right corner of the artwork and creating a glare on the glass. There is no information in the image or its crops that indicates the location of this painting within the city of Mülheim an der Ruhr, Germany.