I think the jumping looks good, and it's a nice height. In FFXI the tarutaru had the highest AGI stat, it's no surprise that something that size can have a bit of a spring to it (like a RL friend of mine in high school was damn short and used to always win high jump at athletics).

If it was lower people would complain and ask what the point of implementing a jump is if it wasn't high enough to jump over most objects.