Vasily Kandinsky, Upward, 1929; © Peggy Guggenheim Collection, Venice.
There isn't a big difference here, but the altered version below does reflect changes in coloration. The work could easily be mistaken for a Klee, and collection notes mention the similarities. They also provide some additional details:
A linear design in the upper right corner [...] echoes the vertical thrust of the central motif. This configuration resembles the letter E, as does the black cutout shape at the base of the central motif. These forms may at once be independent designs and playful references to the first letter of "Empor," the German title of the painting.
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