My coworkers gave me one of these collections, and while I recognize what I think are jade plants, different sedum, and elephant bush, I don't know what the tall trio at the back and the fingery plants just in front of them are. Maybe the rear plants are cotyledon obiculata? I'd appreciate any help. Sadly, as it happens with many of these sets bought from big box hardware stores, the plants were infested with mealybugs and the soil is infested with some sort of small, long, black insects. The tall plants look drastically different--almost like fireworks, with the leaves really splayed out and curving downward--in veggie gardening, I'd attribute that to a calcium or some other sort of deficiency, but maybe it's the hungry mealybugs as I only noticed them after the plant took a literal and figurative turn for the worse. I'm doing what I can to rehab the mealy bugs and will attempt to repot and get rid of this soil. I'd just like to know what these are. Thanks in advance. P.S., the plant to the left is an aluminum plant another coworker gave me. I moved the succulents away after I took this family photo.