A.N.: Bigger version of the first panel is here .
Arthas originally wanted to name his horse, Invincible, Snowflake. That's mainly where his handle is from. Not just his frozen up wasteland. <3 Also, if you don't know what Maltael's handle is referring to, try THIS.
A.N.: Just to clear it up - No, they didn't actually kiss. Yes, Itherael did blast off. He is currently seeking revenge on Arthas. The dudes and dudettes in yellowish armour and red "skirts" are likely Luminerai. "Noteling" here stands for juvenile angels born from recent Light Songs, like Sheragail/Ira. You can even see some of them in the background being curious. =)