I viewed the game without sound at double speed, so I did not listen to your commentary.
The first thing I didn't like was when you found that captain on the left and went after it with another captain. That is a losing exchange for you, known captain vs unknown captain. Also, you are not interested in exchanges, you need to find out where that marshal is and should activate your colonels. His marshal cannot be everywhere. Just go with your colonel at that captain and try to trap it. If he recaptures with his marshal, you are still way ahead in material and your general and colonel are certainly getting into play catching something now, but there is a fair chance that you will just win a captain.
Capturing that colonel was good. Not sure why it took so long, you simply cannot lose with this exchange. You are a general up. If you lose to the marshal, you will be a colonel up with no generals on the board. That is the same thing.
After that you must include your colonel somewhere in that rush of majors and try to capture a major rather than exchange all of them. Every exchange helps him, you are up a general and colonel, but down 3-4 pieces and you need to get some back. Again, if you manage to e.g. capture a major with your colonel and he happens to recapture, you have lost NO MATERIAL. Instead of a colonel up, you will be a major up AND know where is marshal is.
As played, you exchanged everything and at the end his marshal captured your colonel, without even getting anything for it. It would have been a lot better to hand him over that colonel in the early game after just jamming into some random piece that moved.