This sign is displayed on the back of every seat on Easyjet planes. The information it provides is pretty much straightforward and the pictograms are also extremely clear.
The only problem is that the scale of the drawing is way too optimistic and hence the graphic is a lie. The amount of legroom between the seat rows is exaggerated, the scale of human body parts and luggage is fake. Here below a slightly more accurate rendering of what happens when you try to follow their suggestion about hand luggage storage.
Unless you are a contortionist, there is no way to abide to their policy.
