I thought you may have used the plaster technique. I haven't done this, but seems to look good if you can do it right. And I have a hard time doing things right!!
Either way, you are going to have a very good dio. I would like to see pics of your jeep. Are you using the Tamiya kit. If so, isn't it super? I added way too much PE on mine for a dio with a bunch of snow, but I tend to build just to build and I really like the PE stuff. Relaxes me.
Ted