Airy? Is that what you are going for?
Blurring and adds depth to flat designs
The answer is A) poem
Debussy's Prelude to the Afternoon of a Faun was inspired by Stephane Mallarme's poem "The Afternoon of a Faun". The symphony was intended to serve as an illustration and homage to the poem. Interestingly, Stephane Mallarme did not like the idea of his poem converted to a symphony, believing that his poetry was "music enough".
Artists. <span />
Corbel dome : arch like construction method to span a space or void in a structure such as a entryway.
Tholos : Beehive like tomb; Burial structure made out of mud bricks and stones.
Rotunda : Round building or dome.
Hope this helps! :)