Hi!! I have these bumps on my skin too, not on my tattoo but they're kind of all over the place. They're not itchy and don't hurt but they're just there, it most likely has nothing to do with the tattoo! They'll come and go, just continue to moisturize and drink lots of water.
Your tattoo looks GREAT honestly. I'm super big on placement and which way something should face and whatnot, but I feel that it's perfect and true to the album! I think that if you were to get the image flipped it just wouldn't be true to the original. It looks awesome! I'm also experiencing a bit of tattoo doubt but hopefully once they settle in it'll go away 🙂