The present technology enables viewing, analyzing, and improve a variety of motions for a subject by facilitating comparison to a target video. Motions can include activities such as walking, athletic activities, and educational activities. The comparison can be accomplished by adjusting spatial aspects of a target and subject video to match. The comparison can also include identifying synchronization points, between the videos, that identify a temporal correspondence between of motions or objects in the videos and adjusting playback of one or more segments in the videos so corresponding synchronization points are displayed at the same time during playback. A version of one of the videos can be provided as an outline or as partially transparent, which can be overlaid with the other video to create a video combination for playback.