Sea Within a Sea

magazine has regarded the track as "an eight-minute beauty that discards the raucous trashed garage of old" and "sinister throwback sound in deep krautrock trances and '60s psychedelia whilst still managing to hold on to their spooky shtick".

[2] Many music writers and critics have stated that the song combines influences from krautrock, post-punk and Portishead (the previous band of the single's producer, Geoff Barrow).

Johnathan Garrett of Pitchfork described the song as an "oddly muzaked take on krautrock"; however, he commented that the track was "weirdly restrained" and "the Horrors can't even be bothered to leave an impression".

[6] Emily Tartanella from PopMatters expressed that the lead single was "miles away from anything they’ve done before", outlining that "like Ian Curtis fronting the Cure, it’s mysterious, languid, and just a little bit spooky.

Hart integrated old production methods and special effects to forge a psychedelic and colourful eight-minute video, creating a similar atmosphere to live performances of the Velvet Underground at the Factory.