The Ashtkoot Guna milan score is 33.5 out of 36, which is much higher than 18 that is required for marriage. However the grah milan of both are very weak. I’m nore sure the person asking is the boy or the girl , but marital happiness of the 7th house is weak. In the Boys horoscope Mars and Saturn are conjoined in the 7th house, which is the prime house of marriage. Mars and conjunction in the 7th house brings conflicts in marriage. Venus the karka for marriage is combust and has aspect of Ketu. In the Girls horoscope Moon is the 7th lord and in the 8th house with Ketu is bad. Both horoscope are mangalik, so there is no issue on that front, but the 7th house of both is weak. I have not done the complete Grah milan , but despite Guna milan my confidence in this compatibility is not there as 7th house of both is weak.