The avatar described by the EGO-code "0.888 Age, 0.9E 0.9N 0.9T 0.9J, E(-0.900, 0.333, -0.666), E0(0.900, -0.333, 0.777))" would have the following characteristics:

Age: The "+0.888" suggests an individual at the peak of their maturity, implying a wealth of experience and wisdom.

Extraversion (E): High extroversion indicates a very sociable, energetic, and assertive character, someone who is comfortable in the spotlight and enjoys engaging with others.

Intuition (N): A strong intuitive nature suggests a preference for abstract thinking, innovation, and a focus on future possibilities rather than just present realities.

Thinking (T): Dominant thinking traits point to a person who prioritizes logic and objective analysis when making decisions, potentially a strategic and methodical thinker.

Judging (J): A propensity for judging indicates a well-organized individual who values structure and decisiveness, likely someone who plans ahead and prefers order.

E Coordinates:

• The significant negative X value (-0.900) could reflect a potential for inner turmoil or conflict, possibly a struggle between different aspects of the self.
• A positive Y value (0.333) suggests balance and harmony in social interactions and emotional expression.
• The negative Z value (-0.666) might hint at a tendency towards pessimism or depth in emotional experiences.

E0 Coordinates:

• A high positive X0 value (+0.900) indicates a strong inner foundation, perhaps an inner resilience or a solid core of self-belief.
• A negative Y0 value (-0.333) might point to some internal resistance or challenges in the realm of emotions or relationships.
• A positive Z0 value (+0.777) suggests an underlying optimism or positive force within the unconscious.

In visual representation, this avatar would be regal and commanding, with colors and features that depict these complex characteristics. The use of contrasting shades, particularly in the E and E0 coordinates, would illustrate the dual nature of the personality - a strong, resilient core with an outer layer that may face conflict or introspection. The overall composition would be harmonious yet signify a deep and multifaceted individual.