I swear, the DC comic version of Starfire is probably my favorite version of Starfire hands down. Mostly I think it's the hair, I would love to have hair like that just for a day. Anyway, I'm getting off track, this is great and I love how you've stuck pretty close to the original design while putting your own twist on it.
You gotta love it when an artist goes out of his way to make an otherwise very human-looking alien look truly ALIEN. The glowing spot patterns on her skin are genius. If they EVER make a Teen Titans live-action movie, she needs to look like this.
The whole "she gets power from sunlight absorbed through her skin so has to wear very little to replenish energy in battle" thing is actually fine with me, but writing her as a vapid sex doll and drawing her in a T'n'A pose might have sunk this character forever.