Hey, thanks for uploading and explaining the reasoning behind your design choice! #131 is my favorite of the three, it is simple, and with your explanation, I agree that there's a lot of meaning behind the symbol.
#132 looks a bit like a play button and I don't want to be mistaken for an audio focused company but can definitely see what you were going for. Also, the cursive font in #133 is unique for the designs and something I wasn't originally thinking - but is a nice touch, considering 'ink' is in the name and it has a calligraphy feel.