Better is to set slow move time, small focus of the camera, descript what will move. You have to upload starting image as first frame, then chose Image + text (prompt of kind of movement you ask), then you can generate 4 sec of video, then expand or add next 4 sec of move.
FIND & USE THE BEST PROMPT
About Video from Photo prompt for RunwayML
Better is to set slow move time, small focus of the camera, descript what will move. You have to upload starting image as first frame, then chose Image + text (prompt of kind of movement you ask), then you can generate 4 sec of video, then expand or add next 4 sec of move.