shirt colour fail?

I should have posted this step 9 yesterday but forgot. I finished the head except for a few corrections to go and I started painting the shirt the colour in the reference image. However, I don't like the colour. I want something richer and cosy looking. I'll correct it next session because it is easy to do with oils. If this was watercolour I wouldn't be able to as easily. The photo looks a little strange because I was using photoshop to trial a blue colour shirt. The painting doesn't have the blue in real life.