We can see it gets tighter at the bottom, but so does my shirt. This much leg makes it a long shirt, not a dress. The fact that nearly everyone is saying put on some pants should tell you something.
I personally hate tie dye, and I don't like this particular pattern because the spirals are so big. It's okay for a super casual event, but I don't really like it.
You are very cute, and therefore you can pull this off. The actual shirt is way too big on you, and you need some pants on. I don't usually care for Tye Dye shirts, but by limiting it to 2 colors, I actually like it.