Well.. you\'re early out!

Cute! I really like the bag of gifts.. especially that doll.
I think ogrebane covered the two things that stood out for me improving it. Have you tried working form a black undercoat? That will force you to boost the contrasts + give instant lining. I often alternate between white, grey and black it\'s a really helpful excercise.
A tip if you want finer and straighter lines is to use Vallejo brushes as they have longer britles. I use them mainly for that kind of stuff as I find them too limp for other stuff, but they excel when it comes to lines.