Nice shot!
You mean I should actually post all the things I've been meaning to post?! I'll make an attempt tonight after work to get one up.
Communities thrive on fresh content. I'm doing my part! Do your part too, citizen! Would you like to know more?
What is the effect toward the bottom that looks like a line of circles?
That's not a deliberate effect. This is just how the Reflex Nikkor 500/8 renders bokeh. The mirror inside the lens is essentially doughnut shaped and reflects the image back into itself. So technically speaking, there is a massive gaping hole in the middle of the lens. This is why you see the ring effect in the out-of-focus blur.
Edit: Corrected a Typo.
Here's an even better example of it https://p.drkt.eu/2016/14066309_2094513670774721_6947703752195226600_o.jpg
