Hi
Yes, Steve was a great artist located in Oxfordshire who sadly passed away more than a decade ago (1948-2010). He worked mainly for Hewson and Telecomsoft, but it seems that for other companies too. https://www.oxfordmail.co.uk/news/8857403.steve-weston-graphic-artist/
He was the artist behind Hewson's golden age with cover art for games such as Uridium, Firelord, Exolon, Impossaball, Nebulus, Gun Runner, Zynaps, Ranarama, Cybernoid, Cybernoid II, Marauder, Eliminator, Netherworld... You can check his contributions to the Spectrum's software here (albeit the list is a work in progress and the addition of Ring Wars has not been revised by administrators yet): https://spectrumcomputing.co.uk/list?label_id=18120
On Spectrum Computing we have a project running right now to try to track down every single cover artist we can to add them to each game entry on the database. On the last few years we have credited a lot of games and we continue to do so. There's a couple of threads devoted to this task. Maybe you can track down a lot of useful information in there:
https://spectrumcomputing.co.uk/forums/viewtopic.php?p=674#p674 https://spectrumcomputing.co.uk/forums/viewtopic.php?p=39680#p39680
Best regards