His frown deepened; blue eyes turning icy blue as if a fire had ignited behind them.
Huh? If there was a fire behind them, wouldn't they be fiery blue? Because fire melts ice, you know. You can't have fiery and icy, it needs to be one or the other. Make up your mind, please.
Also - basically she's saying that his eyes didn't chance color at all, but she felt like spouting poetry at me, right? So why even bother?