Big, but not 'massive'...
The two yellow characters make the space in the image look very big, but the foreground details sort of ruin the illusion. Specifically, the hair-like things that protrude away from the audience toward the crash are not structured like the 10-foot-long objects they would need to be if those two characters are human. Also, the shelf they are standing on looks almost like a book. It's too defined to be massive.
Otherwise, you pulled off the illusion of hugeness perfectly. The perspective is awesome, letting us know that everything not in the foreground is far away and colossal. Excellent work: only the foreground needs improvement.