I tried every setting but could not make Icons to appear inline as shown below:-

Icons are flying like below:-

or can i get a real leopard dock as in first image,look for separator too(different).
I have failed to find one on internet, looked every other software but find your software quite worth.
I hope future releases will be free from above problem.

i feel dock is much wide in nexus(leopard) theme.
just make it thinner from front and correct the curve(slightly less bulging).

That's called the 'Stacks' docklet. Nexus will support a native Stacks docklet in the next release, but only in the paid Nexus Ultimate version. Otherwise you can use Cris'n'Softs stand-alone Stacks with the free version of Nexus.



Something you can try is to reduce the spacing between icons which will also reduce both horizontal and vertical space between the icons and the edges of the dock (Nexus Preferences --> Appearance -> spacing between icons). If you have Nexus docked to the bottom of the screen, you can also specify a negative edge offset so the bottom edge of the Leopard background is not visible.

If this is not enough, you can try changing the Leopard background bitmap yourself.