I can't comment of the European colour schemes. However the pre-El Alamein middle-east camouflage schemes described on MAFVA are inaccurate and unnecessarily complex, though the colour matches are correct.
The only accurate description on the web so far is at:
http://www.geocities.com/redironbark/summary.htm
which is a word by word copy of a report by Geoffrey Barkas, Head of M.E. Camouflage – the chap who was there at the time.
HTH
Mark Mackenzie