I say leave them black and white. Your monochrome works leave a stronger impression than the colored ones.
jakie cudowne kolory, zgadzam się, niesamowite zagęszczenie, uwielbiam, b&w i w kolorze!
Love the texture!
Duuuude, you have honestly got to illustrate your own fantasy book. O__O I can't stop staring at this!
Oooh! Very nice! I love the contrast between the colours.