It is probably ok...but Burro's tail is very etiolated. Other 2 look more compact - did you just get them? Burro's (or possibly burrito) needs more light; it need to be much more compact. I grew lots of them, they grow relatively fast & fill up the pot. Personally, I wouldn't grow them together - but whatever you like.

These started as a small cuttings in 2" pots (3 or 4/pot); after 2mo were repotted into 4" pots and let grow for another 2.5mo. They were quite long & filled pots completely. Few of the original cuttings below:

At the point in time when the root/ soil mass can be lifted from the pot intact (w/o crumbling) root congestion will have begun to exact a "tax" in the plant in terms of slower growth, lower vitality/ health, and likely eye appeal.

The best strategies to deal with tight roots are, fully repot (most succulents) in May (if you live in the Northern Hemisphere), or divide and pot up the divisions, or start a new planting from cuttings when the vitality of plants in the planting begin to decline, or pot up (to a larger pot) well before the point in time when the root/ soil mass can be lifted from the pot intact. If the root/ soil mass is allowed at any time to become congested to the point where roots and soil are a homogeneous mass, the only way to relieve the congestion is by way of a full repot, dividing, or starting over from cuttings. Potting up cannot offer improvement beyond what the plant's normal growth would be, it can only allow the plant to temporarily return to a growth and vitality level slightly closer to what is normal for the plant. Potting up can never restore normal growth. It can be somewhat helpful, but nowhere near the other options that eliminate root congestion entirely.

Al