Above the antique mantel was displayed As though a window gave upon the sylvan scene
https://pbs.twimg.com/media/CfyaLzEUEAAsgxq.jpg
Words taken literally... may not work. I didn't know what "Sylvan" was. I googled it, and said it's wood. This is the best thing I could find/ come up with. Because of that, the scenery changed.