He was 2d happy, that's a gold mine for Arakune, easy baiting for j.d > 5d > j.a > j.c > j.d for 100%. If he's mashing it during your 6a, go into 2b > 2a > 5b (1 hit) > 5d.
You can 2b his jump ins, one of the few characters you can still 2b AA.
Work on your IAD, you could get 70% off of any landed 5d on a grounded opponent, and you missed a corner specific 100% when you did 5a > 6a for some reason. You could have done 5a > 6b > IAD > 5d > j.a > j.c > j.2a > DC 5d > j.a > j.c > j.d since bang was near the corner.
Also nice hit confirm off that d bug > j.236d > RC > j.c > j.2a > DC 5d. For future reference, you could have followed up from that with j.6a > (j.9) j.a > j.b (2 hits) > j.c > j.d.
Bangs like those look like easy pickings, teach your boy to fear doing 2d, our j.d may not be a low anymore, but it's still far from free.