I hesitate to offer a comment, since I'm obviously not an expert, but here goes: I think the photo would improve with a solid background rather than the wood grain. Also, maybe moving the cap closer to the bottle.
If it wasn´t for the title, there would be no way for me to know it´s ink. Excellent idea, but poorly executed in my opinion. Next time maybe try to turn it a little bit so that the light (from a window?) hits it a little bit more from the side or front. 4