Problem: There's a model whose face is completely lathered with shaving gel and he is using a blue razor to shave his face. another male model

Answer: also has his entire face lathered with shaving gel.

Problem: How to do a running front flip
Enlist the help of an experienced spotter or you might get hurt.
If you don't know anyone familiar with a soft surface to practice on. Gymnastic pads or mats are.

Answer: If you don't have access to them, use a firm mattress. Prepare with exercises to strengthen your form.

Problem: How to do a scissors twist with an exercise ball
Put your exercise ball in an open space.
Make sure there's nothing nearby that could distract or hurt you as you exercise.
Lie down on your back with one of your legs on top of the ball and the other right next to it on the ground.
Answer: Prop yourself up slightly on your elbows so that you're looking at the ball, with your hands pressed palm-down to the ground. Squeeze the ball between your lower legs/ankles and lift it up from the ground.