F5, and the world lift up. I love RR's icon. I like SR's too, but I think it's quite hard to read; my brain doesn't completely understand what it's looking at. It's nice, anyway.
Speaking of icons, may I express my concerns about the icons of SBR, TLF and Shattered Haven having a distinct, circle design? Or that most have ingame elements while SBR and RR have a stylized "glyph"?
Side note: while I love AIW's icon being the most imbalanced unit in the game, I have to admit it takes dedication to meet the BotNet Golem ingame. Also, AIW has a nice little icon (the fleet-raider-like between the "AI" and "War" on the "AI War collection 2014" banner); why not using that more recognizable glyph as the game's icon?