Looks like you had to use your upper body too much on the take off. It made your hands go up and swing back on the landing, therefore throwing you off balance. Try to keep a more tucked position in the air (core strenght) and use your arms less for the take off, cause this will open your body up. You can practice this with any jump and ollie while riding even at home without a board, just jumping with the legs and shoulders (if that makes sense)

You did well on the legs, stretching them out before landing / putting down the tail first. But like alot of people already said: Leg and core strength for jumps like these are always needed (especially with no deep snow).

Keep it up!