About this 3D model

Hi,This is the first thing I've made, so go easy on me.It's a small Fridge Magnet of our Dog Max.I made it on Google Sketch-up, so here is the Sketch-up file, if you wont to change it and the stl file. UPDATE: Here's a version of Max with a hole recessed in his back so that you can add a magnet (I used Super Strong Rare-Earth Magnets 10mm x 1mm, which I got from dealextreme.com http://www.dealextreme.com/p/super-strong-rare-earth-re-magnets-20-pack-10mm-x-1mm-5962)