Doesn't look like wild garlic to me and it is too early for that to be flowering. Could you take a photo of the whole plant please and add to your question.

Could be Allium triquetum, Three-cornered garlic, which usually starts to flower in March. Agree that a photo of the whole plant would help with ID, though.

Could be difficult to tell as neither of the photos is in focus.

I wondered about squill - might just about be in bloom in Essex if grown in a sheltered spot.

Good idea, if it really is pale blue, but it would be awfully early? And you can't really see how big it is.
Any chance of some better photos?