I love Clematis, we have several of them in our garden and hopefully have a wall of flowers soon. The Clematis above on the right is called Nelly Moser and the Clematis below with very delicate pale pink flowers is Clematis Montana.Lawrenson's Pink which thrives gorgeously on the sunniest spot in our garden.
*Edit* actually the Clematis on the upper right picture is not Nelly Moser but "Capitaine Thuilleaux". It looks very much like Nelly Moser especially when the plant is young. The young Capitaine Thuilleaux also has large single petal flowers with a lighter edge and a darker pink center, but when it matures the flowers turn into double petal ones.
Thank you very much Carol for pointing out my mistake.