At first I agreed that it did not look so natural, but after seeing the pics of your own hair flat ironed, I think you can pull it off because mentally you will know that it looks like you...if that makes sense. The style is very pretty too!
I am wondering if it will get too hot on a cruise to be wearing a heavy wig, especially one that comes into your face like that-- so that is something to think about. Also, I feel like you had another very natural looking wavy wig. Was that you or someone else who posted about the wavy wig you had given a name too? I just remember it looking great! I think that wig fits the idea of a tropical cruise vacation better. Especially if you are going to be getting in water a lot. (If that wasnt you then just ignore me)
I feel a little awkward putting in my two cents but hope my comments are helpful since you wanted feedback