Perspective Errors with the Figure Problem
These rules also apply to other perspectives. In first-person, we're also in the character's head, so we should see things as they see. In third-person omniscient, you can give even more information than the characters have, but you certainly shouldn't be giving less except in rare circumstances.
A Final Note
The word “figure” is extremely vague and nondescript. It gives the reader almost no useful information. Think about it: how often can you see a “figure” without being able to identify more descriptive characteristics? You could probably tell a figure’s gender from a distance; at the very least, you could tell that it was a human, a person. You might be able to tell their relative age—whether they’re a child or an adult. If you can be more descriptive, then do it! Only resort to something as vague as “figure” if you absolutely must.