Problem with most of those pictures is the engines. German WW2 jet engines were frankly rubbish, and had naff-all development potential.
Best engine thrusts
Mid-1943: German 1,600 pounds, UK/US 1,400 pounds
early-1944: German 1,600 pounds, UK/US 1,700 pounds
mid-1944: German 1,800 pounds, UK/US 2,000 pounds
end-1944: German 1,840 pounds, UK/US 3,400 pounds
early-1945: German 1,840 pounds, UK/US 4,000 pounds.
late-1945 German 2,850 pounds, UK/US 5,200 pounds
The figure for late-1945 assumes that the Germans got the HeS-011 engine to work (which was planned to power most of the jets to be found at Luft’46). That would probably never have happened - the Russians tried to make it work after the war and failed completely, despite having better access to strategic metals, better mettallurgical technology, and much more time. That is incidentally why the MiG-15 and the like were powered by license produced/pirated (not sure on the exact terms of the license) RR Nene and Tay turbojets - the Russians really hadn’t got a lot of jet experience, and the German jets they captured were worthless. As an example, the jet engines used by the Me-262 used mild steel and aluminium for the turbine blades (only giving a life of ten hours or so even with active cooling) and only had a pressure ratio of 3:1. This severely limits their power to weight ratio, fuel efficiency and peak speed. To reach the higher pressure ratios required for better efficiency they needed better metallurgy and design, neither of which they had.
The German engines had a lifespan of 5-10 hours. Even with a lot of work the Russians couldn’t get this much above 50 hours - at a time when US/UK engines (pretty much the same thing at the time) were doing around 500 hours, and had reached nearly 5,000 hours by 1950.