Middle one strikes me as a tad underdressed - a bit Hollywood 1001 Nights - he's going to get sunburned. I confess I am far from being an expert on Arab pre gunpowder armies - what period are these? Islamic expansion/conquest? Later? The one on the left fits more with pics I've seen - but maybe that is a stereotype too? Quite nice all round (although the guy on the right seems to have borrowed a claw from a lizard to replace his severed hand at some stage).