User blog comment:Kittyfire/Random Topic Blogging!/@comment-3473686-20110826183821/@comment-3473686-20110826184532

Okay! Vinata (misspelled in pic) and Jonathon are Vanessa and Johnny's daughter and son. In the pic, if you look closely, Jonathon has 3 vertical scars across one eye (not necessary for human design). Tobias and Hannah are Vanessa and Ferb's son and daughter. Again, if you look closely, Tobias has a scar over one eye (again, not needed in human design).

Also, the lion designs should help a bit with the hair color thing.

Oh, and Tobias's eyes are identical to Ferb's.