Hi Xuan, I want to say Euphorbia lactea cristata (a Euphorbia lactea crest) but I can say it's definitely a Euphorbia and that it's crested. Careful of the the latex (the sap), please, as you would any other succulent Euphorbia.

Was kind of considering Senecio oxyriifolius for #6 as well. Hard to tell without a bit more of the plant. I agree with H. attenuata for #1 and cyclops seems correct for the Aeonium. My attenuata was labeled as fasciata as well and looks the same as this one but it was explained to me that if the inner side of the leaves aren't 100% smooth then it's not fasciata. Apparently fasciata is quite rare and I don't think I've ever actually seen one. This may be one here, at least in my mind this is what it would look like.

I think it needs a good soaking. It is trying to conserve moisture and is dropping old leaves. If you are unsure, stick a long toothpick or wooden kebab skewer deep into the soil and leave it overnight. Pull it out tomorrow, and if it doesn't feel dampish, you should water. It is possible your soil is compacted into a hard mass which water cannot soak into. When you water, watch if the water comes out the drainage holes immediately or if it actually soaks into the soil. If it pours out immediately, immerse the whole pot in a deep tray of water and let it soak for a few hours. Then use the wooden skewer to determine when it needs to be watered again. The purple colour is likely from the high light levels. happy growing! Breton

Thank you so much for the reply! I will look that up! :) I'm embarrassed to say, I've been staring at them for two days and still have no idea if those are flower stalks or what. Ha. I tried looking up the difference to see if I could figure out what was in store for them, but ended up lost in a sea of Google. :)