Keep photography open for everyone and use your (bugged!) MultiTab 6000, if you have it, to skill up to level 10. In my ID, the second generation sibling reached level 10 before becoming a teen and before owning a camera. It's not all that hard to max anyway, just hard to supermax. Keep gardening and charisma open for everyone as well, because everyone can help with the garden and make a ton of money.
I would actually do sculpting first, even though in my immortal dynasty I saved it till a later generation. Have you tried to do ice personality for three generations in a row? I did on a test run, and it ain't pretty. It's doable, but it ain't pretty. I'd do Cooking second. Painting third. Social Networking is a good choice for fourth, because of relationship transmogrify. The selling of five blogs is hard, so get started on your blogs right away and when you get an offer, take it!
Fifth skill could be alchemy or maybe even logic if you have generations (and ONLY if you have generations! If not, choose alchemy). Sixth could be handiness or inventing. Spares should do handiness until this generation, unless your sixth generation is doing inventing. Seventh can be fishing, as I have discovered after trying to have my second generation heir do fishing. Catching death fish only requires level five fishing skill. I have caught relatively good quality death fish at this stage. Eighth- whatever you want. Some good options are Mixology, Athletics if you have a body sculptor, Nectar Making, Science, Street Art, Martial Arts... Anything!
Are your old elders getting useless? They can clean house, take care of the garden and toddlers, make money, start a band (Carina and the Dreamweavers, anyone?), learn skills that you KNOW aren't going to be in this dynasty (be sure!), collect, consign, run errands, cook family meals, and do everything for the almost-immortals short of super maxing the skill. Make the heirs' lives super cushy with no work to do other than dynasty requirements.