Color here for sure. also try upping the sharpness to bring out the texture. the B&W definitely needs more contrast. Also might be good to mess around with adding vignetting as the edges get a bit boring
and lastly if you can re-crop it, try giving it an extra 15% or so on the left, the edge of the curvy thing is just barely cut off and looks awkward. the circular hole is the focal point and should generally be placed using the "rule of thirds" -- at the intersection of lines of thirds like in the below photo from google: