Yeah sorry for the late post but I got more seb art specifically for fathers day. Both are sebs kids. Amy(pic1) is his adopted daughter and melody(second pic) is his bio daughter that he has a year after escaping the facility. (Also pls don't mind prince Adam, he just wanted to be included)
Amy is a void-mass hybrid experiment that was taken to the facility after an accident involving the puddles and is the youngest (human) person in the facility(age 15). I'll have a full ref sheet posted soon trust. (Main inspo is void paradox: aphmau)
As for melody, she's Sebastian's first bio kid post escape. She's born a year after Aria and sebastian get treatment for their experimentation. Obviously melody takes after seb more but instead of 3 eyes and arms she has 4 of both and due to being a girl mixed with angler DNA grows bigger than seb surprisingly fast
*As always I do not support zerum or zeal sebastian is now my oc I will do with him as I please*