Should have a very quick first three steps then go in to a full stride. Honestly, you're looking great. Maybe try to keep your chest/chin a little more upright. Looks like you're getting decent knee bend. Concentrate on keeping your arms moving forward and backward with less of a swing/twist to them.
Screen cap'd a frame, you want to keep momentum going as linear forward and backward as possible. As you can see, your front arm is curled in front of your chest and the back arm is swinging out.