I don't get ska, I get 80s rock, sounds like Traveling Wilburys with a little more horns and electricity. I really like the sound and the song. Great energy. It's a wonderful vibe.
Maybe re-think the vocals. To me, they are a little harsh and too forward. I want more dynamics in them, to allow for maybe some more emotion. They sound much better to me when there's a harmony happening. I would keep the big opening, but get spare and quiet on the first verse, bring the energy back for the chorus, and bring a new instrument and extra harmonies to give energy to the 2nd verse. At least once try a big delay effect on the phrase "Get it out." At 2:12, cut the horns and rhythm guitar, make space for the lead guitar lick.
Overall, though, it is a badass sound.