Picture puzzle endures, did you say, on mural, fancifully? (6,5)

'picture puzzle' is the definition.
(Where's Wally is a series of visual puzzle books)

'endures did you say on mural fancifully?' is the wordplay.
'endures' becomes 'wears' (wearing is a kind of enduring).
'did you say' shows a homophone (sound like).
'on' says to put letters next to each other.
'mural fancifully?' becomes 'wally' (I can't justify this - if you can you should believe this answer much more).
'wears' sounds like 'wheres'.
'wheres'+'wally'='WHERE'S WALLY'

Can you help me to learn more?