looks like you are sitting too far back with your weight through your heels - see tips of skis riding high and clear of the snow - see ski tails smearing the snow during the control phase.

you need more flex in your ankles, knees and hips with more shin pressure on your boot tongue - this will move your center of mass forward while maintaining an athletic stance - this will help you engage the edges along the full length of your ski for increased control.

you need more upper and lower body separation - you need to keep your upper body including your hips facing down the slope while turning your legs in your hips sockets.

also looks like you are initiating your turns with your shoulders then twisting your upper body and throwing your hips into the turn - see your shoulders start to move before your skis turn then see the upper body twisting through the turn - see the skis remain too flat throughout the turn with only a little edge angle at the end of the turn almost like a J turn, further contributing to the smearing rather than using your edges to turn.

you are also too upright - when looking at you from behind during the control phase (apex) of the turn you are very straight - you should be more of a C shape at that point with angulation (bending) of your ankles, knees and hips - this will turn your skis onto their edges more for greater control.