In sai, go to the drop down menu titled "paint effects" or something (it's above the lays box) and then select the ehh..I think it's the second drop down menu with the "fringe" setting and it should add an outline to your stroke!
JUST A LOT OF HEAVY BREATHING. EXCUSE ME. SCREEEEEEEEEE. THEY'RE SO PRECIOUS. MY BABIES. SO CUTE. BEST SIBLINGS. (psst. they're not twins, but they're pretty identical. so dat's coo.) AHHHH. SO CUTE. I LOVE THE WAY YOU DREW THEM BOTH. SO MUCH. AHHHH DANNY. MY PRECIOUS DAUGHTER. WHOM I NEVER DRAW. AHMEGAHD. Ohhhh you captured them perfectly. SOB SOB. I love seeing Grimm with Danny. It's like the nicest you will ever fucking see him and I'm just jdjfoaejfoeo
WOWWWWW. Their expressions are great and you drew their hair so nice. Ahh I'm so happy. Cutiest. TTwTT I'm coloring mine right now. I'll be done soon. -lays on you-