In reality, Hinano does not appear to know about Rocket, inconceivable as it may sound. So, any competition between her new project and Starlight is just my imagination, but whatever. Once she gets the ball rolling, the competition is going to come to exist objectively.
Her designs look very good indeed. If only she found a way to get rid of that hideous computer sheen, nothing would be left to desire. Interestingly enough, the murderously cute Sixten's fanart for Starlight does not have that "silk effect", yet it obviously was shaded on a computer. What is his secret?