If you use that door as the main door to the house than a mirror would be great to have on the art wall. so that when leaving you can give yourself one final look. and perhaps call a wood worker to build a custom floating table (table with no legs screwed in to the wall) next to the door to hold keys or a flower arrangement.

Maybe tie the modern pendant light with dark wood of clock? You could put one on each wall... something curvy and bronze-looking?? The curve catches clock shape & bronze complements clock.

I think a contemporary round rug about 12" smaller all around than the floor area would look nice. Shop here to see lots of variations. Search the box above under Shop for contemporary round rug.

Safavieh Sofia Collection SOF365 Rug, Light Grey/Blue, 6'7" Round · More Info