This is another Creation by me, this time I chosen Windows 7  Wallpapers by Redmond Pie. I have created Login screen in 5 Flavors i.e Black, Blue, Green, orange & yellow.
 
So, here we start:
 
 1.) Black Flavor:
 
 
 
Download Black login Screen from here
 
 2.) Blue Flavor:
 

 
Download Blue login Screen from here
 
 3.) Green Flavor:
 

 
Download Green login Screen from here
 
 4.) Orange Flavor:
 
 
 
Download Orange login Screen from here
 
5.) Yellow Flavor:
 
 
 
 
Download Yellow login Screen from here
 
Download All Above 5 login Screen in Single package
 
How to install this logon Screen?
1.) Go to C:\windows\resources.
2.) Create a New Folder with Name “Logon” as C:\windows\resources\logon\.
3.) Now Navigate to Downloaded Logon Package, there is 2 options i.e widescreen & normal  (Choose on your wish).
4.) Copy Setup.reg & LogonUI.exe to C:\windows\resources\logon\
5.) Once Copied, Click on Setup.reg to install the logon Screen.
 Just Reboot or Log Off for take Effect!

Source: Tweaking Windows