Rose variety suggestions?

I felt sorry for two very poorly looking discounted Sainsbury's small potted roses and so paid a £1 for each and popped them in a largish terracotta pot outside. I'm not a huge fan of roses - too much of a 'Look at me! Look how beautiful I am!' attitude about them - but every supermarket plant deserves a chance.

After a few weeks one rose sadly withered and died but the other perked up and now seems to be reasonably happy with new growth and flowers. Any suggestions for a similar rose variety/species to the survivor that I can put in the same pot. It's quite small-leaved/flowered (image below with ruler for scale) and not very tall:




Thank you.