Not very.
This isn't a trick of the eye. That Hawk really is rather close to HMS St Albans as the frigate is buzzed during training off Plymouth.
The Saint is undergoing combat training with the Flag Officer Sea Training organisation in Devonport in company with Britain's biggest warship, HMS Ocean, and destroyer HMS Edinburgh.
The Mighty O's being given some 'top-up' training by FOST ahead of some demanding aviation exercises involving Apaches, Chinooks and Merlin, while Edinburgh is readying herself for deployment later in the year after a lengthy refit in Portsmouth.