Nice fight man, in no way am i an experienced fighter but from what i saw:
2:32 You had a triangle from mount screaming out to you when he put his hand on your hip, takes some flexibility but if you sink it then its almost 100% finish. Also when i mount personally i like to isolate an arm and start to play with it, start looking for your kimura/americana and inexperienced guys will freak out and reach over with the other hand, giving you the arm triangle in a plate.
10:10 with the triangle attempt as he pulled out you could of gone for the omoplata.
Also when in half guard personally i prefer to use the lockdown, its a lot easier to control their base and get a sweep.
Nice fight though and you never looked in danger.
Thanks mate.will have a look at this and learn from it.appreciate the input