Big Blue Yonder

This image is not a Japanese print — it's a contemporary abstract oil painting (divided into a pale, faintly gridded/striated white field on the left and a dense, horizontally textured dark navy field on the right), consistent with the given medium "Oil on canvas." Flagging this mismatch since the task described it as a Japanese print; if this is feeding the Hanga print catalog, this image/artwork record likely doesn't belong there.

Description based on what's visible and the facts given:

Big Blue Yonder (2000), an oil on canvas by Donald Groscost, is divided into two vertical fields: the left half is a pale, near-white ground with faint vertical streaking and a subtle grid of thin lines, while the right half is a dense dark navy blue built up with horizontal, wind-swept brushstrokes that create a striated, rippling texture. A hard vertical seam separates the two halves, setting a quiet, muted field against a saturated, turbulent one.