Great way to start with only the bass, introduces nicely to the punk approach. Reminds me of The Ramones, especially the catchy chorus. The bridge is very intriguing, adds nice color to otherwise musically upbeat mood. Lyrics are bit dark like the sunglasses, but you have kept the message crystal clear and enough simple for a sing-a-long. Your voice suits punk very well also. Thumbs up from me for the melodic pop punk.
Janne