Wow!
Such iconic images. I really love the composition in these.
You might play with the contrast in image 3 and see if it pop with more contrast. Also, the hue seems a bit on the cool side. You might play with the temperature control and see if it can be warmed up a bit to remove the blue color cast.
But in any case, these a winners.

It looks like a painting.
You are fortunate to find such a wonderful setting.

Nice, nice nice.
You have mastered the art of correct exposure and stop action.
Color composition is awesome.

Do you own an iPAD? If so, there are several apps that provide depth of field calculations specifically for your camera.