Sailing the High Trees

I’m fascinated by this design! I just wanted to check: it isn’t a pop culture reference of some sort that I don’t get, is it? It’s just a delightfully Dada image of a rowboat in a tree–both whimsical and surreal? Executed in a very distinctive style, miles away from the “standard t-shirt look.” The crosshatching of the figure for some reason reminds me of Caps for Sale–or maybe it’s just the cap–or at least Edward Gorey. Meanwhile the foliage is distinctly Mod, making the whole just a titch psychedelic.