You've got some ok work in there man. But its looking a little thin. 2 sheets per project wont be enough for your future employers. You should be looking at 4-5 minimum, and a minimum of 5-6 projects. If your having trouble finding work, go make up your own day-long brief. And crack out some quality sketches. I dont know how different it is over in the states, but maybe get some solidworks/3ds max renderings and a little Autocad stuff, to show them you know what you're doing.