The last picture with the rainbow, has to be photoshopped.

Rainbows are supposed to be all circular, due to the angle and refraction of light and shape of the water droplets.
Seeing one as a circle though is rare as they generally can only be seen as a such from above or below.
We normally see half-circle rainbows on the horizon, in the morning or the afternoon only, because the sun shines through the falling raindrops, which refract the light into the colours of the spectrum.
If the sun was high enough, the rainbow would appear circular, but it's usually lower and half is blocked by the horizon. The reason we don't often see circular rainbows like that is simple, when the sun is high...

The last picture with the rainbow, has to be photoshopped.

Rainbows are supposed to be all circular, due to the angle and refraction of light and shape of the water droplets.
Seeing one as a circle though is rare as they generally can only be seen as a such from above or below.
We normally see half-circle rainbows on the horizon, in the morning or the afternoon only, because the sun shines through the falling raindrops, which refract the light into the colours of the spectrum.
If the sun was high enough, the rainbow would appear circular, but it's usually lower and half is blocked by the horizon. The reason we don't often see circular rainbows like that is simple, when the sun is higher in the sky, the clouds that are causing the rain in the first place are blocking the sunlight.

Great clip though none-the-less. though that does make me wonder about the other pics.