I did change the texture of the ground to a stone like material, but i do not think it is a distinct colour to be able to compliment and bring out the walls. So it should be darkened. May be even use a black colour to make other elements really stand out

I did attempt placing a roof-like structure to 'contain' the office. But i think it ruins the whole ambiance of the office. Also, i think it promotes really bad use of space which goes against the whole idea of the green places journal

You can clearly see the efficiency of the walls as it could potentially provide lighting for the office space..being functional as well as aesthetical.

i took these snapshots to show the effect in which my office has in darkness. I personally think it looks better at night time rather than the day because the glow from the sides. Maybe i can make the floor texture dark to induce a darker office, in which the lights from the side walls would be more obvious