Mine has more marking around the tail, but it could be that yours doesn't have all the full adult colors or it's from a different area, so the marking are slightly different.
Looks like a changing male. It took mine about three years before it changed and then it was relatively quick with a couple of weeks. Now my problem is my PBT thinks it's a new fish and chases it. Luckily it's well established and doesn't bury just hides, but still feeds normally.