Kicker was surprised that Ryze was fast enough to react to his kick at all, let alone with his eyes closed! For a second Kane felt extremely inadequate, but he realised that there was probably some kind of trick to it, yeah that must have been it... no other explanation.
At least Aeon was impressed by the strength of his kicked, for the sake of his ego, he decided to focus completely on that. Kane attempted to modestly rub his head, but the huge grin on his face ruined any hint of modesty he may have had That was nothing, I was holding back! he hoped they didn't notice that he had hit so hard that his foot was sore.