The hands are the only thing I would critique...keep your elbows in and keep your arms elastic. Your elbows are too straight in this picture and need to bend a little to bring your hands up. Not up high, but just so that your elbow is almost a 90 degree angle...obviously with the elasticity, the angle will not be the same the whole time you ride..but that's a starting point to think of. Your leg positioning is great, and you're sitting up nice and straight--AWESOME line from shoulder to hip, to heel!
A horse is the projection of peoples' views about themselves--strong, powerful, beautiful--and it has the capability of giving us escape from our mundane existance.