I will put the photo of the actor Dingdong Dantes because Hunyo is based from him and his body language.
Both him and Jin had similar in personality and fighting style and their differences was their age. Hunyo is in the same age as Kazuya Mishima who is currently at 50 and has an appearance of a 43 year old (Dingdong's present age) and his current height and build are also from Kazuya. Hunyo's style in Kyokushin was also mixed with Modern-Style Street Brawling which was labelled as Burning Ju-Jutsu in the crossovers while Jin is in the purest form of Kyokushin. Why Hunyo knows about Jin's old and current fighting styles because that time he ridicules him as a copycat when Jin debuts in Tekken 3.
Another difference between them was his temper as most college students are afraid of him and was very talkative when facing his opponents. If Jin doesn't speak to someone during fighting tournaments, Hunyo seriously speaks when it comes to a real fight and berating his enemies for their recent actions.
Don't mistook Hunyo as Jin because he will give anyone his ire except for the real Jin would even taunt him that he looks like him, much to his disappointment and sensitivity. 😉😉😉