Invasion UFO artwork

Can anyone name the artist who painted the INVASION UFO promo and video picture?  It's a marvellous painting, almost as good as the amazing Tom Chantrell paintings for the first two Space: 1999 compilations.  

As an aside to this, I have just bought an Italian DVD from ebay which features this great painting and a slightly re-arranged version of the title!  I await its arrival with some apprehension!