Looking at your horoscope we see that the Guna milan score is 21 out of 36 which is much higher than 18 that is minimum for marriage. There is 5-9 Bhakoot dosha which is not good. As Sumit belongs to Rakshasa Gana and Priyanka belongs to Deva Gana the Gana score is also very less. Marriage should be considered if Bhakoot dosha gets cancelled. You should do a grah milan to check if your relationship is acceptable astrologically and long lasting.