Vintage Button-up Top 1980s-90s

This vintage top appears to be from the era of the 1980s or 1990s. Quite a fun funky pattern, this pattern makes me think of Jurassic Park. Maybe a paleontologist would be wearing it with some khaki shorts. Quite possibly a homemade top. No signs of a tag. I think this size is anywhere from a size small to medium. I’m 5’3” and approximately 130 lbs, the top has a cute fit on.