Not bad. You definitely caught some cool clouds.
Were you shooting in manual? It looks like the exposure jumps back and forth a bit between some of the shots, so definitely make sure that you're Shutter, aperture, and ISO are all locked.
Also, It would be nice to get some of the landscape in the shot as well. Frame it a bit lower, maybe so the horizon is at the lower 1/3 of the frame.
Balls deep, no half-shaft.