It's can be difficult to get started. You want to do a kit justice but sometimes you feel you need more experience. I'm not happy with mine now, I think I could do a better job but at the time I did the best I could. It's a learning process so I tend to think "just build it" and I'll learn something now and I can always do another one later.
You can view the instructions which contain their recommended colours on scalemates (www.scalemates.com). Lookup Kotare Spitfire. I almost exclusively use Tamiya XF paints and I followed their recommendations. However I find that colours tend to vary their shades as you apply washes and even clear coats.