Bob !

Here's your finished file. The colors are more accurate, rich and vibrant. The closeups show some details. We've added a subtle texture to the outside blue which adds depth.The shamrock has a green glow, and the vehicles are slightly grey, and have a flowing texture added. The type has a smooth metallic look, the "EST" text has a nice drop shadow and all elements have 3D effects added. An earlier post is at the bottom.