It's very interplanetary looking to me. Which can be a good thing, or a bad thing depending on your style goals. It doesn't look natural, but it's subtle. I think you'd have to try it out with lenses you knew were safe for your eyes and see what you thought. Also colored/costume contacts are interesting in that people talking to you might not quickly identify what it is, but instinctively know something is off with your eyes -- so it might be a bit unsettling.
Also if this was with lighter colored eyes rather than deep brown, there would be a more naturalistic hazel effect, so that might be less sci-fi.