I really like descriptive writing so was instantly taken with the detail in your opening. I do have some suggestions though, if that's ok, that might improve the flow a little.
A layer of sand drifted along the dunes of the Arabian Desert, leaving nothing but inch deep ripples in its way.
Replace 'way' with 'wake'
The sky;
no need for the ;
dominated by the intense light of metal melting sun,
metal melting sun jars a little - how about just 'the sun'?
showed only clear blue alongside a small blur of white dispersing cloud.
no need for the 'only' or 'a small blur'
A five inch matt black scorpion, with two pear shaped pincers bigger than its armour coated body, absorbing the unforgiving rays of sun;
replace 'absorbing' with 'absorbed'
replace the ; with 'as it'
scurried among the Desert sand eagerly searching for prey. The sun was distorted from the immense waves of heat passing through the desert, glistening on the scrap metal of what was once the third fastest stealth plane in America,
and scorched though the heat and pressure resistant clothing, that was the pilots uniform.
I can't quite make sense of the final line I'm afraid.
I hope I have been of some help - just my opinion of course!
Stu Ayris
http://tollesburytimeforever.blogspot.com/