Prism's album cover is ruined by that tacky and unnecessary border. The simple center picture of Katy would have made it a whole lot simpler and iconic.
I love Prism's but it's nothing special. ARTPOP's is risky and it paid off. The statue is incredible. I don't love the typography but the rest makes up for it.
PRISM's album cover shows it all – light reflection + burst of colors. Artpop's cover is definitely not an art, not even close, it's a plain mess. Let alone the statue it may be consider because sculpture is a form if art...