According to the David Austin Site:

‘Imogen’ is an extremely healthy and floriferous rose with a natural radiance and charm. The exceedingly pretty, soft lemon blooms begin as pointed buds, which become more rounded as they open. The fully open blooms are medium-large in size and very distinctive in character, with many delicately frilled petals arranged around a classic button eye. Over time, they gradually pale to almost cream. The fragrance is light but pleasant, with hints of fresh apple.

…

The name ‘Imogen’ takes inspiration from the daughter of King Cymbeline, and virtuous wife of Posthumus, in William Shakespeare’s Cymbeline.

Taken with a Sony A77II and Minolta Maxxum AF 50mm f2.8 Macro.