The phrase "a surprising selection of" is correct and usable in written English.
You can use it when describing a variety of items or options that are unexpected or not what one would typically anticipate.
Example: "The art gallery featured a surprising selection of contemporary pieces that challenged traditional norms."
Alternatives: "an unexpected array of" or "a remarkable variety of".
Bennett was somewhat of a surprising selection by the Cavaliers, who believe the 6-foot-8, 240-pounder from U.N.L.V. can play power forward.
ROMAN SIGNER, 69, a Swiss artist who creates sculpture, photographs and video and may be the most surprising selection of this group.
Perhaps the most surprising selection of all was Francis Coquelin, who whilst impressing this season and last, has played just 88 games for the Gunners.
Blinkered views of an open race Even the website of the Man Booker International Prize bangs on about the "surprising" selection of 10 finalists - each chosen for career-long achievement - just announced for the biennial award.
And by far the most surprising selection of the day -- and maybe of the last five drafts -- was the Oakland Raiders' picking Florida State kicker/punter Sebastian Janikowski at 17. Janikowski, who weighs 260 pounds, was rated a third-rounder by some scouts.
Gareth Ellis justified his surprising selection ahead of the unlucky Kevin Sinfield at loose forward with an industrious and error-free 80 minutes, Paul Johnson continued his unlikely challenge to Fielden as Britain's player of the tournament and both Richard Horne and Mickey Higham offered extra pace off the bench, even if they were unable to match the impact made by Thackray and Walker.
Luke Procter has the odd flirty moment outside off stump but justified his slightly surprising selection with a knock of 45.
In which case his surprising selection will come to be seen as a masterstroke of geniuses.
They did neither, becoming an online version of your nearest FYE, with decent (but not surprising) prices, and a spotty selection of new releases and mysterious B movies".
A surprising juxtaposition of old and new, it offered one of the best selections of sherry in Spain, along with the complete Equipo Navazos line.
