Looking heaps better, I think the muzzle of the dog could be a tiny longer, sometimes proportion works better when its not in proportion to the real world.
In this case a slightly longer nose would increase the shape of the greyhound and compliment it.
Look at the top of the white dogs face.
There is a bump just near the eye and the rest of the muzzle tapers thin.
This would improve the overall look again.
Just the tail to go I guess.
I hope I used the correct spelling of muzzle or id be looking pretty dumb right now.
One you have perfected it, sell the mesh with textures isolated so you can change the colour of the dog and the racing harness to a greyhound society, build them a website or a program that allows them to see thier own pooches.
create a geneology program with 3d dogs as the placeholders for the tree of bred winners etc...
you would make a killing!. theres always turbosquid as well for a few extra dollars, but only until you have perfected it.
kudos for all this hard work, its starting to pay off.
If no-one gives your an answer to a question you have asked, consider:- Is your question clear.- Did you ask nicely.- Are you showing any effort to solve the problem yourself 
