wow, I can tell I'm going to have to keep up with your work! I just commented on the ex-girlfriend piece too.
You're obviously very confident with colour and it works well - I particularly like how this one seems to have some dry-brush texture to it. If I can be honest, at first I thought it was the sails of the boat and preferred the vertical composition. Of course the nice thing about abstract is the buyer really could hang it any way they like.
It looks like the paint is 'flatter' than in the girlfriend painting and I think the bold, heavy brushstrokes in the other painting suited your colour better. Nice stuff though.