Couple things I'd recommend for general impact:
Getting lower (even lower than you already did) tends to make shots look more intimidating. You did do a pretty good job with this to begin with. I second the different crop, either a closer crop or in a perfect world include another balancing subject to the frame. With shots like this it lots of times isn't an option though, so no worries.
I would like to see more depth of field, so stop down the aperture so all the coils of the snake are in focus. This could be a judgment call though, because the background might gain too much detail and get distracting, so it's a careful interplay.
As trevytrev said, you might want to use natural light or try to diffuse your supplied light a bit here. It will take some of the harshness out of the shadows. There are lots of DIY diffuser methods out there.
Check out this guy's setup. Super simple but then look at how great the lighting in his macro shots look. |