Well, Homura was always trying to save Madoka by reseting time, so I just figured this would be one of those many scenarios where she traveled back in time to try and change the future. So she's like reaching out in desperation to try and save her friend, but she keeps failing.
D: It's very beautiful and heartbroken drawing! Homura running with her true feelings filled made me very sad... She always want to save Madoka many times no matter without stop. It look very wonderful... ;_;