Hey dudes, don't worry about it. I encourage everybody to do whatever they want. I would never take offense to this and I don't think anybody else should. You did a great job on these and for me its very flattering to know I had a part in inspiring you to do something.
I used to always try and do other peoples approaches and style constantly to learn, but you may as well get some publicity out of it at the same time. So no reason why you shouldnt do your own batman thing. You will eventually go into doing exactly what you like, I know it because you're obviously skilled in what you do. So don't worry about it, just keep on doing exactly what you want. Even if that means learning from someone else directly. xoxoxo