That sure is a funky looking top Chimp. What make you think that those two clones are from an s1 and not the original? They do look slightly different by I have seen two clones from the same mom be slightly different. Though I have noticed more that clones can differ from seed mom's pretty significantly. I had a skunk 1 that was pretty great from seed. The smell was great the nugs were thick and dense and frosty on the plant from seed and then the clones of it just did not compare. The nugs were smaller and wispier and it just never filled in as much or frosted up the same. All grown the same way in the same set up.