the yellow tint comes from the bad awb of the 5D. The first 8 images are just downsized.
The large sensor of the 5D manages very well high iso. From iso 800 and up, there is no more competition between the two cameras. However, the panasonic, without a vibrating mirror movement, allows to safely handheld a maximum shooter speed of 1/20s, which is very useful in low light.
I should say that, below iso 800, the pany is very good. iso 1600 remains for emergencies and iso 3200, well, just for fun.