that was a pretty good right hand; I liked the way you threw it overhand to get it there. Think on this for a minute...You say that all these taller guys come to you and give up their height advantage. Here's two ways , using the left hand, to make them pay for that.
To start, you need to let them come at you with the jab. Stay just a hair out of range, but don't touch their glove, because you want them really stepping behind that jab. Then you parry it, push it over your left shoulder with your right glove. Let it come right to you, with them really stepping behind it, then push it over your shoulder. You have to get your left hand out of the way for this to work, drop it to chest level, but not to far.
When you parry that jab, their weight will come forward. You can do two things. One, push off your right foot and bring up that left hand, like a jab/straight left hand. This is very punishing. Or hook. Drop the weight onto the back foot and throw a real short left hook to the chin or solar plexus.