Whatever the names are ;please bring asap in better soil. Eventually they will die in this peat.

Did you just stick the cuttings in the soil, then water? Do you think they have roots yet?

As noted above, they need to be repotted in very small pots with better potting mix. Your best bet is commercial cactus & succulent mix combinged 50/50 with perlite or pumice available from your nursery. The soil they are in stays wet way too long, and succulents like drier conditions since they already have water stored in their leaves.

As far as IDs, not sure what's in the first picture. Can you post a few more up close shots? The second picture has what looks like Crassula ovata variegata (potted by itself), an Aeonium of some type (the rosette with the teeth on the leaf margins), and maybe a Crassula capitella (the bright green one). Not sure about the fourth plant. Be aware that some of these plants may have differing needs and would do better in individual pots. I agree with previous comments about soil mix.

First one looks like Oscularia deltoides.

I am using a commercial cactus/succulent mix, but I didn't realize I would need to mix it with more pumice/perlite. I'll try to get my hands on some of that soon and do some repotting.

I got the cuttings in the mail (shipped from California to the east coast), so the 'wounds' had time to scab over before I planted them. I put them in the soil and let them sit for a few days. I've watered them twice in the three weeks since I potted them. Some definitely have roots, but some haven't rooted yet.

VT

Watering rootless succulents 2x in 3weeks in water retaining soil is not advisable. Pls. make better mix asap - using lots of sifted perlite or pumice, and also use more of it in pots. Most of your plants are too low/deep inside the pot. Bottom leaves should be just above the rim, not inside of pot. Can I ask how can you tell that some have roots? (I am just wondering! It is great if they do - and they should in 3weeks).

That's good..many probably do (if not all).

(I was just wondering since some ppl keep 'checking' if there are roots by constant digging up to see - didn't want to assume you did, so better to ask, right? :)

It is usually better to pot up different plants separately when new and especially rootless - for the reason you found, and also just in case one of the plants could start rotting (or may have bug or disease) and may infect other plants in same pot.

After the lecture about soil, on to ID: First picture is Oscularia deltoides, also sometimes referred to as Lampranthus.

Bottom picture: Variegated one in the back could be a jade, the one directly in font of it is also some kind of jade or crassula. In front of that, you have an aeonium. The one with the long green leaves is also a crassula, perhaps Crassula Corymbulosa or Capitella. Maybe it's a green version but If given lots of light, should turn red and yellow