I don't know... maybe it's just me... but your requests all seem very specific and each will probably require some work on the part of each artist to tailor their current work to meet your exacting specifications. The artists with hot-selling items are probably too busy to pay attention to your specific requests, as well. They are probably working on their next item. And I haven't seen a lot of work with teenagers/preteens here. Those are separate items from the adult models from DAZ and cost the artist extra. (I don't know anyone other than DAZ that provide teen/preteen basic models.) What seems to motivate people here is some kind of contest with a prize that they find valuable. You might want to correspond with the site staff through the Community Ideas forum (listed under Admin Forums on the right-hand panel). You give people the right motivation and you may have more stuff than you can handle! Good luck!