As yrameshrao wrote:
1) Check if pic added to resource folder
2) choose pic and see it's properties
3) find in properties "Build Action"
4) set for "Build Action" - Embedded Resources.
5) if you not sure what resources name write in this function AlphaImage.CreateFromResource("???????");
6) for testing what embedded resources you have add inside CreateFromResource("???????")
this : string resources = Assembly.GetCallingAssembly().GetManifestResourceNames();
in debug mode stop on this line and see what resources you have and their name.