Couple of quick tips to help:

When sailing downwind and the crew comes in off the wire, before the crew comes in the skipper grabs the spi sheet in their free hand before they come in. Means the kite still flies and you have speed going into the gybe (very important and helps steering). Same thing when the crew looses footing on the trapeze. Whilst they are getting sorted again you can grab the kite sheet and keep the boat going.

Also change the angle of mainsheet cleat so it can't be cleated when going upwind! Yes it is hard to hold, but heaps faster and you are more reactive to the gusts. In bigger winds the crew can work the main. Trust me on this.

Crew should be taking the downhaul out with them on trapeze when both of you are on the wire. Start trimming the sails together.

And where are the palm trees? Looks too cold!