Exterior shots of the wreckage of the Raven show it resting on an open plateau, but interior shots looking through the wrecked viewscreen show a cliff wall directly outside.
Capt. Janeway identifies the bird in Seven's flashbacks as a raven based on the detailed description in the journal. Seven says the bird has yellow eyes and a wingspan of approximately half a meter (about 19.5"). A common raven has black eyes and a wingspan of more than a meter (45-51"). It's too small for a crow, as well.
No explanation is offered as to how the Hansens, who were from Earth, were able to reach the Delta Quadrant in just a few years. That's because it is unnecessary to repeat what everybody already knows - the Borg have trans-warp technology which allows them to travel far faster than any known ships.
Immediately after Tuvok beams onto Seven of Nine's shuttle and fails to subdue her, there's a shot of her shuttle flying by. The ship's registry can be seen on its side, but the numbers appears backwards, which means this was a flipped shot.
A couple of external flybys of Seven's shuttlecraft switch between the type 6 and type 8.
Tuvok is seen from over his left shoulder as he says to Seven, "I will accompany you to the surface. You don't have to go alone." His jaw moves as he speaks, but it stops after the first sentence. The second sentence's audio is slightly different than the first. Dubbed in post-production.
Neelix states that steamed Chadre'kab would be most appropriate for Seven, then proceeds to stir-fry it.
Seven incorrectly addresses Tuvok in the shuttle as "Lieutenant." He was just promoted to "Lt. Commander" in Revulsion (1997). The proper way to address a Lt. Commander is "Commander."
In her log, Seven of Nine states that the bird she sees in her visions has yellow eyes; however, the bird shown has black eyes.