These weren't painted black but these are in the deep shadow. That's the light trick.
Seen from the another angle the colours may look differently.
But as I said .. it looks like the V4 or the V2 because their codes were similar to. The images are too blurry to state wich one. IMHO these are freeze-frame from a German footage about the plane. The second shot below reveals the "DP+A?" code on the fuselage and the 'D" letter on the starboard wing undersides.
Do you have any really rare photographs? Based on the type of photograph of Ar-234 T9+GL, W.Nr 140608 from "Commando Bones" and 4U+DH under the control of Hans Felde?