It looks really nice papa worm! Love the wood and leather look! Not real crazy about the white stitching thou. To me it really stands out too much from the leather and the wood. Perhaps a light tan or light brown color would be better? Hmmmm, perhaps a light tan.
As for the recessed connector, I think if you cut the circumference of the inset to about half or 3/4 the size it would be better. As long as a average sized tank could fit I think it would look better.