What Buddha looks like?

Buddha is perhaps one of the few sages for whom we have mention of his rather impressive physical characteristics. He was at least six feet tall and had a strong enough body to be noticed by one of the kings and was asked to join his army as a general. Although the Buddha was not represented in human form until around the 1st century CE, his physical characteristics are described in one of the central texts of the traditional Pali canon, the Digha Nikaya. They help define the global aspect of the historical Buddha, his physical appearance is described by Buddha's wife to his son Rahula upon Buddha's return in the scripture of the "Lion of Men":

Like the full moon is His face;
He is dear to Gods and men;
He is like an elephant amongst men;
His gait is graceful as that of an elephant of noble breed.
That, indeed, is your father, lion of men
He is of Aryan (aristocratic nobility) lineage, sprung from the Kshatriya caste;
His feet have been honoured by Gods and men;
His mind is well established in morality and concentration.
That, indeed, is your father, lion of men.
Long and prominent is His well-formed nose,
His eye-lashes are like those of a heifer;
His eyes are extremely blue; like a rainbow are
His deep blue eyebrows.
That, indeed, is your father, lion of men.
Round and smooth is His well-formed neck;
His jaw is like that of a lion;
His body is like that of king of beast;
His beautiful skin is of bright golden colour.
That, indeed is your father, lion of men.

Interpretations may vary, and the reliability of the Sutras may be questioned. The description above is indicative of a typically Indo-Aryan body type. This can also be related to the tradition describing the historic Buddha as a member of the Indian/Nepali Kshatriya warrior caste.