OMG - wold you look at the carbon footprint on that thing!! LOL - just kidding!! I think that a bit of color correctiojn would have brought the sky to life in this but all in all a nice shot of this "creature" -

I like itit looks good as aDT

It's generally considered imperative to have significantly more space in the direction of travel in a composition, and there's a few degrees of left tilt to the horizon.

It would be nicer if the shot is done at a moment it sails away, or coming near(dangerous though). That would give more story to your shot. Generally it's good.

An interesting capture of this vessel and I'll have to check out her site :)
The sea has a nice colour and super movement. I agree with ::tee about the sky - as it seems to need to be lightened. I appreciate your work : ^ )

Impressive picture...i think message is pretty clear...