Two reasons why your sand art moves too fast: 1. There is not enough air in your picture. Refill air, use the airscale. Even with the right amount of air, it is possible is still moves too fast. Each sand art is hand crafted. That’s why we always get slight differences. Fill slightly more air than indicated on the airscale. 2. Maybe you turn the picture in a way the air bubbles can’t spread out underneath the sand. Better flip the picture than turning it. If you turn it (in example a Movie type) turn it more than a half-turn so the air can spread out under the sand. It is important to build that air barrier, which is holding back the sands and allows slow movements.
Maintenance
From time to time you have to regulate the air and refill water in your sand art. Why that? Water evaporates, that's...
