This was my first attempt at pre-shading for weathering. I prepped the model with Wal-mart equipment grey primer and flat white then cleaned out the nice crisp panel lines that the Arii kits have and the darker plastic showed through. Pre shaded the lines with a darker mix of the PRU pink I had mixed up from Gunze Sangyo Pink (very bright), radome Tan, RLM BraunViolet. Lightened up the paint with some off white and sprayed the whole model Pink.
When dry I used a wash of acrylic black, water and dish soap all over then wiped off with a damp cloth. Then I take pastel chalks and literally draw lines on the model, don't be afraid to use other colours than black or grey, blues, reds and yellows are effective too. I then just use my fingers to rub in the chalk and a Q-tip slightly damp at one end to clean areas up, flipping the Q-tip around from damp to dry end until I'm happy with the effect. Real simple and real fixable anything you don't like will rub off with a damp Q-tip. All sealed in with some testors dull cote
I was very happy with the finished result I know the Arii Mk VIII doesn't make a perfect Mk X it lacks the proper gull wing ( an all too common error on Spitfire models) and needs a deeper chin for the oil radiator
but it looks like a Spitfire!