Certified GKH Gardening Expert
If you wanted to put them in a more decorative outer container you could do that, just get them a little larger than the pots they are in.
If you want to repot, be sure to only go up a size or two in pot width; too large of a pot is detrimental. You really don't need to unless the plant is rootbound or seems too big for its current container. Get to know your plants. Some perform better when rootbound.