I like finding interesting objects like this large piece and using them as sculptural art. For best success, counter the rustic by using finer features throughout the balance of your space. This helps the piece stand out and will eliminate the the object’s potential garage sale image.
The sophisticated line of this modern chair and elegant shape of the shell chandelier make theses pieces of visual interest while not competing with the sculpture.
This whimsical drapery panel is too fun to resist and a great way to introduce a whimsy into this space.
When you want art and sculpture to stand out, use neutral white toned hues for wall surfaces. Go with deeper hues if you want the art to blend in and/or want a cozier space.