Terra's bird looks like a first generation Sizzle to me. With the first cross you will sometimes not see the dark skin or some of the other features.
Keep in mind Sizzles are not a recognized breed. There is no standard. Those of us who have been breeding them for a while are attempting to get them to breed true but that is still not always happening with my 4th generation birds.
Keep in mind there is no breed called a Frizzle, most people think of the frizzled cochin as a frizzle but there are many different breeds that are frizzled. When showing a Frizzled bird is judged against the original breed, Be it Silkie, Cochin, Rock or Rhode Island Red. Sizzles are not recognized and it will be a very long time until they are.