its not the height of the jumps, its the technique, and yours is fine, the pony looks so honest and careful, he has a really kind face.
the white blocks with the red and blue poles- isnt that 2'9? i thought a pole on top was 3', and that bit was 2'9?
looks really, really good, and if your enjoying jumping at that height keep at it, i prefer jumping that height to bigger fences, its less worrying! x