Sorry to be negative on your "kindness" but thats a S.E. Asian HARLEQUIN ladybird you should have squashed it.
They are definately on the increase threatening our native ladybird and other species
"It" has a huge appetite for greenfly, leaving little for native ladybirds who then starve.
Worse still, the harlequin would turn on other ladybirds if food resources diminished for the whole population.
The invader will also prey on other types of insects, eating butterfly eggs, caterpillars and lacewing larvae.