here are some additional views

The wall is too small for the art. Try relocated it to another place. That mirror also looks to be hung too high and could benefit from something grounding it like a console.

I think a piece of art would have been my choice instead of the mirror and that other wall needs nothing BTW a nice console under the art would be a much better look.

If you can share photos of the entire room, it would be helpful for us to see what other wall options you have in this space.

Wall hung items should be centered 5' above the floor or hung 5" above a piece of furniture. The furniture under them should be 25% wider than the hung item. The wall behind an item should be at least 25% wider than the item. That translates to: the picture doesn't work there. It loses all its presence when crowded like that.

I like the artwork, but not there. You can put a stand under the plant to heighten it, then you'd need nothing on that wall.