Hey no problem, just looked through them and they are really impressive for a non-SLR user. Just shows what can be done, keep up the good work. Particularly like the night landscape. :)
Shot with my Nikon D300 10-24mm lens @ 10mm 5 exposures and processed in Photomatix Pro as a tonemapped image. Further adjustment made in Lightroom 4 and a glow filter was added using Nik Color Efex Pro 3.0