Looking at the swatches, the Canon has better Jpeg output, the K-1 has much more detail. These are simply not the same class of camera.
The 5DmkIII is comparable to a K-3 at 100 ISO and jpeg output. Slightly better in some places, slightly worse in others. You're comparing the Canon to the wrong Pentax. My guess is a K-3II using Pixel Shift leaves the Canon in the dust.
The Canon image looks tp produce a more contrasty jpeg, but nothing that couldn't be fixed in PP, but the Pentax has more detail in the orange, pink and red. You sure don't get much for your money with the the Canon, at least not in terms of 100 ISO IQ on a still life or landscape. In fact used as a field camera, the Canon is highway robbery.
You can do this yourself at Imaging Resources as linked above. There is no need to trouble folks on the forum with this kind of nonsense.