I would definelty look to transplant into the fabric pots when the arrive. The clay pots also hold in heat so if that’s an issue than it’s definelty not ideal.
As far as the differences go- they probably are the same strain but just reacting differently to the conditions. The color or leaves/ arena has to do with nutrient uptake more than anything else. Once you get your tent all situated and they grow a little bit more I’m sure they will start looking more and more than same.