Glad you like it.
1.
I used the XF 16mm 1.4, the 18-55 2.8-4 and the 55-200 3.5-4.8
2.
I guess you mean to ask if i did a lot of color-grading. There wasn't much grading. It shot with Astia Soft Simulation mode, so colours were already pretty vibrant. I did some minor white balance correction and some lifting of the shadows but not a lot. Besides that i did a lot of post stabilizing on the shots without panning. In most locations i did not have that much time so i shot a lot of it handheld. I stabilized most of those shots in Adobe Premiere Pro CC 2017.
3.
I used a Manfrotto MVH502AH fluid head for those. Again, because i did not have that much time to always set this up, there are only a few panning shots. In addition tripod legs (Sirui N-2204X) are not really ideal for such a big head and video use.
4.
I shot everything in 4K except the second ocean shot, which i did in 50fps 1080p to get slowmotion. I knew i had to do post stabilization and wanted to have the possibility to crop the image in post.
5.
I did not notice any stuttering. I watched the video on my tv from a USB-Stick and it ran flawlessly. I hope what you experienced was because of streaming quality.