Truly outstanding work! If Strelets wants to keep up the WWI Ottomans theme to supplement existing sets from a certain other manufacturer, you should also consider a set of cavalry wearing the kaffiyeh like these infantrymen. That was more common wear during the campaigns in Palestine and Arabia, and would provide perfect enemies to Lawrence's Arabs and the Aussie Light Horse.
Two other interesting sets to explore in the future would be Ottomans in winter uniforms for campaigns against the Russians in the Caucasus and a late war set of Ottoman assault troops with the rimless stahlhelms. The Ottomans in winter gear could include a ski trooper or two, as the Turks used them in the winter of 1916-17 with German advice.