Miruna,
Regarding the yellow one, she is currently growing in a rather messy, sprawling manner. This is perhaps a larger rose than the others? You could get some stakes as support, or a small pot trellis and slide it in behind the rose's main section in order to give support, and even loosely tie up some canes. It might be happier to have more stability, as it puts less stress on the root ball. I would clip off the discolored, brown edged leaves, this is nothing to worry about, if the majority of the leaves are good. Roses usually have leaves that have suffered some damage, no rose is perfect, so just get rid of them. In addition, the little tufts of leaves growing out of the base of the canes can be snipped off completely, those are just junk filler branches and don't need to be there. Remember, YOU ARE THE BOSS, you can shape and train and prune your roses while using your best judgement. Regarding Earth Angel, I have grown this rose and the petal count is enormous. It takes a lot of work to build up those very full blooms, and a newly potted rose is going to be challenged by this. I would allow this plant to only bloom on half of the stems until it is fully vigorous. This may take time. Otherwise, it will take away too much energy from the rooting process.
