Yes, Aviation Week did have a photograph of the B2 from above. Described this way in Wikipedia:
The B-2 was first publicly displayed on 22 November 1988 at Air Force Plant 42, Palmdale, California, where it was assembled. This viewing was heavily restricted, and guests were not allowed to see the rear of the B-2. However, Aviation Week editors found that there were no airspace restrictions above the presentation area and took photographs of the aircraft's then-secret planform and suppressed engine exhausts from the air, to the USAF's disappointment.
I was a subscriber in those days, and saw the pix.