This flying eagle illusion can be used for a shawl, as shown in the photographs, or it could be adapted to be a rectangular wall-hanging.
It is 160 stitches high and 320 ridges wide. Using a gauge of 5 stitches per inch the finished size is approximately 162 cm (64") wide and 81 cm (32") deep. I used approximately 520 metres (570 yards) of Stylecraft Special DK in Stone and Midnight. You could use other yarns but this might change the overall size.
The shawl is shown with a narrow edging all round. You could add a wider border if you want to make the shawl bigger. The pattern has various versions of the chart, including one specially designed for phones and tablets. It has instructions for the shawl, and for converting to a wall-hanging.