I've posted a few drawings of the four oldest, but I think they may have been lost in all of my posts😅 So here they are again💚
Here we have Romeo, Joan, Galileo and Sunny. (Marcello has still not been colored, but is on my tablet😅)
They look like the turtles, in that they have green skin, a smaller shell compared to have their fathers have, that doesn't go much further than the top of their shoulders or past their tail bone, and doesn't really have a nose. They do also show greater strength than humans, but I would argue that their fathers are stronger.
With the children being part mutant turtle and part human, it's a given that they would have mixed traits. Though they look like the turtles, their growth and size is much like that of a human. That means that when they were born, they were the size of a human baby, and when they are full grown adults, they would be the size as a tall human.
They do not grow hair, but my guess would be that their own children would start to grow hair. Also, they can't retract into their shells, as their's doesn't have as much space.
But also, they are damn adorable to look at😭💚🐢