GenG looked so nervous. Later in the second half of Icebox it seemed like they themselves looked defeated and had given up hope. Texture with his head in hands and hands clenched together, just something you don't see from such a cheerful guy, but he wears his heart on his sleeve in both good and bad.
During the first maps they were good and all in the groove, but Zekken dropping 20 on defense on Split (cause I think SEN drop the map if he isn't winning so many of those fights) just kind of both heavily wore on the stamina and mental of GenG and empowered SEN going into Icebox, and then SEN started to get momentum (vibe merchant Zellsis woke up) and it was just over.