Couple questions. Since this isn't done and there's no download link, would this go into Texture Discussion?
Can you tile the blocks that ARE finished so we can see how well they tile?
Why don't you use a 32x or 64x resolution pack?
And have you done any textures that aren't block textures, eg. GUI, mobs, environment, etc?
I'd be interested in testing and/or helping (though it's true most people prefer to work alone) if you're interested.
This isn't very photorealistic. It's actually quite difficult to pull something like that off at such a low resolution. I'd recommend using something higher. Also your grass texture could tile better. There's a clear repeating pattern going there, which looks rather unnatural for grass.
I agree with CyrusOfSky. This doesn't look photorealistic. The few blocks that do look somewhat photorealistic don't, because of the low resolution. I'm not exactly sure what the liquid to the left of the water is. Is that supposed to be lava? If it is, try a more red/firery texture.