That was your first? WOW! it is obvious you where a natural artist from the beginning, is that the tool you have used for it, or is it just a pencil for scale reference, thanks for sharing Phil,
When your doing something like this for the first time, you have no experience to fall back on so it's all trial and error but you learn as you go on and it doesn't matter if you make a mess of it.
The next time you try you find that you can put extra dots in between the others!
not only very nice, it's mindful, to me, of the art that was done in books long days ago. i think most refer to it as "woodcut". in any event, this is just classic "old time" artistry done in modern time.