On a recent covert op in the Czech Republic (I'd tell you all more about it, but I would then have to seek you all out and kill you!), I was confronted by a midget MiG pilot, whom I quickly overwhelmed and tortured.
It turns out the Czech's have cleverly introduced a program to train midgets to be fast jet pilots in a effort to improve the turning performance of their fighters. The smaller the pilot, the higher the "G" they can take and also has the benefit of smaller crew weight (better aft C of G), also assisting turning performance.
It also turns out that the Gripen purchase was a disaster for the country, as the sub-assemblies come in flat packs from Sweden (subcontracted by IKEA) and it is taking impossibly long to assemble these aircraft due to the overly complicated instructions. The Czech's have had to bring out their MiG-21's out of storage until the Gripens are assembled - it's all true!
odd arm/leg/head/torso ratios?
I think that midget (lil' person!) in your photo is just a 'normal' lil' kid donning a full size helmet.
I could be wrong tho. What w/ radiation leaks, bad water/nutrition, pollution, lack of prenatal care, etc, in E.Europe/Russ, I guess many things are poss.