I think it's pretty good despite my hatred of spiders and all but I don't know if I'm seeing this correct in iPad. But maybe if you cropped a little off the right other than that I like the lens your using .
Did some cropping, lightening, small levels adjustment and sharpening and came up with this. This image is on my site for the sole purpose of showing it here larger but will be removed in a couple days or sooner if you request such.
the sticks in the upper portion of the frame are distracting as well as the "chopsticks" that seem to be reaching out for him.
the edit-assistance jr brought enhances the appearance. if you could've gotten lower and in front of it to make it seem he is crawling towards you, that would ahve been better yet.
on a side note, for a first attempt, it's pretty good. i have a problem with octo-legged brethren so approaching is an ordeal in its self, not to mention seeing an enormous arachnid in the view finder. each small movement for me is hair raising to say the least.