Thankfully I didn't had to made them pixel-by-pixel (though I was afraid I might have to do it). Managed to find the photograph of the plane made at a relatively right angle, scaled it and saved in 16-color format and simply erased everything in "wrong" colors. But the "100 years of..." writing was done pixel-by-pixel.
Those pictured are prominent contributors to regaining of Poland's independence in 1918.
Along the leading edge, (top-left to bottom-right) are: Józef Piłsudski
, Ignacy Jan Paderewski
and Roman Dmowski
Along the flag cheatline (top-left to bottom-right) are: Ignacy Daszyński
, Wojciech Korfanty
and Wincenty Witos
Lol, no, these windows are just a very strange error.