Nah poor imrik guy just didn't know how to fight skaven in early game - try LOTS of rangers, they shrunk rats like no tomorrow. And easy replaceable)) Some light cav would be helping much too
First battle was easily winnable. Should have moved most of his forces to smash the biggest skaven force on the left. Use one or two units to man towers to soften right skaven force then fall back to a more defensible position. After defeating bigger Skaven force on left side, group up with smaller force to smash the rest of the skaven. They would have split up slightly to take out points which means you would only have been fighting a few units at a time with your whole army. Ez Smash. Ez win. Skill issue.