—like a participant walking in the rainbow parade.
like he is walking… to as if he were walking…
—as if he were walking in the rainbow parade too.
complement (N) – a grammatical element required to complete another expression in the clause (an expected element)
dynamic verb – in grammar, a verb expressing action rather than a state of being
irrealis – "contrary to reality" reflected in the verb form
participant (N) – someone who is taking part in an activity