Interesting game, yeah. However, you made a few critical mistakes. For example you had a small strike force behind behind his back. At some point, Ftang upgraded two outer MEXs (left flank) to t2. You could have used your small army to take them out Then, you had bad luck early on, when your 2 mechmarines were unable to kill his expanding engineers. And, you focused too much on air. To make it worse, you used your bombers to take out PDs, bad decision. Instead use them to suicide on engineers. Every player has one factory assisted by a lot of engineers, so had Ftang. Running your 10 Bombers there would have been vastly superior compared to wasting them on random PDs imho.
Your micro was lacking at times. I cant remember how often you had a bunch of flapjacks at the front, without protection, being slaughtered by Rhinos. Keep them in the back, make use out of their maximum rang.e If you see your pillars and strikers are getting beaten, withdraw your flapjacks, they are too valuable.