Conversation so far:
What was Girl power in relation to the Spice Girls?
The phrase girl power put a name to a social phenomenon, and was a label for the particular facet of post classical neo-feminist empowerment embraced by the Spice Girls.
What were the reactions  the phrase 'Girl Power' was met with?
The slogan Girl Power was met with mixed reactions
Did anyone dislike the 'Girl Power' message?
Some critics dismissed Girl Power as no more than a shallow marketing tactic

Question: What was the appearance issue?
Self-contained rewrite: What was the appearance issue criticism of 'Girl Power' message?