Final answer:
Ramon's tendency to see his family portrait as a whole rather than individual members demonstrates the Gestalt principle of closure, which drives us to perceive incomplete figures as complete objects.
Step-by-step explanation:
When Ramon looks at the portrait of their family and sees the family as a whole instead of as individual family members, it demonstrates the Gestalt principle of closure. This principle explains our perceptual tendency to organize our perceptions into complete objects rather than as a series of disconnected parts. We are intuitively inclined to fill in gaps and perceive incomplete figures as wholes, which makes us see the family portrait as an entire unit until we deliberately focus on individual family members.