The stem/caudex is nice and green, you might have a good varigated. Lucky you! I would give it more nitrogen, and generally more food than the rest of your babies. Nitrogen is the first number y'know!
Good photos!
There are several adenium groups, with folks who post interesting photos. Type adenium in the search space at the top. One is Indonesian, and not in English, but the photos are fun to see. Another bunch is a mix of people, with a grower in India who posts and answers questions. And (Mr.) Choochart has a presence, that's Siam Adeniums..
