Super adorable, tidy horse! YOu look real good on him and he looks to be happily engaged in what he is doing. I love that kind of happy look on a horse.
Couple of small things; in the jumps in both of them your leg looks a bit stiff and locked at the knee, which almost looks like it creates a roach in your back in the second photo.
IN the dressage one, again the leg looks a bit stiff. Alignment is good, especially considering you are not in a dressage saddle, right? But you look a bit tight and it shows in your hands being too far out in front of you.
this is prettty minor. The horse looks really nicely connected to the bit and stepping under nicely. If this is your first time eventing, then I think you are going to go far!