Nice bunker all in, but next time maybe make your fast refinery (fist one and the only one) at his main base, the rush will be quicker and bunkers will start to build faster, also you will have spare 1.5k which means you can make 2 bunkers asap and use his refinery as yours.
As for Chimera player, fast pumas was very bad idea, either you should try to make fast sniper to counter his incoming k-max which going to build bunker or try to block with your infantry by going all around his refinery (try to have an idea where k-max going to land to build a bunker and block that place). I guess you would need more than 3 infantry units, but it should be possible.
Best way to do it on short distance map.
Thank you.
^miG vs Commissar