By the year 2002 McKenna was commissioned to produce the main artwork on the Cunard Line transatlantic liner, Queen Mary 2 and his existing studio facilities in Worcestershire were rapidly becoming to small for the greater scale of artworks that he was starting to be commissioned for. Driven by the shortage of economically viable studio space and with the Queen Mary 2 commission contract signed he relocated the studio to a small holding farm on the South West coast of Scotland. From the new larger studios in Scotland, McKenna was able to create much larger artworks in fabricated metals. The Queen Mary 2 CUNARD commission being 20 ft by 23 ft bas-relief in sheet bronze and stainless steel, a portrait of the ship itself. McKenna later went on to create the staircase feature in the sister ship Queen Victoria, again a relief portrait of the ship itself. Both relief sculptures were carrying on the panel theme from the original Queen Mary ship built in Belfast and launched in 1934. Back on land McKenna was commissioned to create a bronze statue of swineherd Eof, in Evesham, Worcestershire. McKenna's design for Eof was selected in the year 1999 by public competition but it took the town several years to raise the funds to pay for the statue.
In 2006 the larger studios at the farm to which McKenna relocated enabled him to extend into fabricating larger stainless steel sculptural structures. The new facilities saw the creation of a colossal mining figure, named 'Jigger' commissioned by the Walsall MBC for a site in Brownhills, Staffordshire. This 5 metric ton type 304 stainless steel sculpture of a miner stands approximately in height, brandishing a pickaxe and lamp, a monumental tribute to the local coal mining industry of this industrial area. It became the biggest representational sculpture figure of a miner in the UK and a significant public artwork for that area of the Black Country. It was named 'Jigger' after Jack 'Jigger' Taylor, a local coal miner, who died in an industrial accident when the roof of the pit at Walsall Wood where he was working collapsed, in 1951. In 2007 McKenna set up the A4A art for architecture studio sculpture foundry where he started casting his own bronze sculpture and statues. McKenna also created a bronze statue The Miner of Auchengeich as a memorial in Moodiesburn, Glasgow. Hovering Kestrel -This stainless steel bird sculpture of a hovering Kestrel measures 6 metres across its wingspan by 4 metres high sited on a building facade 14 metres high. The Kestrel was commissioned by the client for the Citadel Logistics Building on the Black Country Spine route, near Bilston in the West Midlands. The Kestrel concept for the artwork came about through design research work undertaken by A4A associate Steve Field drawin on Natural History information on the former site.
Sporting Sculpture statues
McKenna's commissions include statues of footballers: Jock Stein at Celtic Park, Glasgow and of Jimmy Johnstone in the Jimmy Johnstone Memorial Garden, Old Edinburgh Road, Viewpark, Lanarkshire. On 20 September 2013 the town of Dudley commemorated the Wimbledon Tennis ChampionDorothy Round by erecting McKenna's lifesize bronze statue to her in Priory Park, Dudley. The statue was cast at the A4A studio foundry and depicts Round making a return play of the ball, based on an old photo, as conceived by Steve Field. It was unveiled by the subject's daughter. outside Celtic Park During 2015 the football club Celtic F.C. commissioned McKenna to create a lifesize statue of the Lisbon Lions captain Billy McNeill. The statue depicts the moment McNeill lifted the European Cup after Celtic won the 1967 final. The statue was unveiled outside the Parkhead stadium on 19 December 2015.
In 2016, McKenna's sculpture of former AC/DC frontman, Bon Scott was unveiled in his hometown of Kirriemuir. The statue has been funded via a crowdfunding which had raised over £45,000 to see the work completed.
