help me! drawings lifeless

[nickzaart]

Hi! I am Brazilian and new here so sorry for my English, I have difficult to finish my drawings, I take a long time in an art, and when I finish, I find them lifeless, I would like you to help me, this is my recent drawing. what do i have to improve?

[darktiste]

The expression is not cartoonish enought in my opinion since you choose to draw it cartoony.I think you could come up with a lighting scenario that could be more impactful.I leave some example of some work you could get inspired by .

[nickzaart]

thank you so much for the feedback! I will try to fix the mistakes you pointed!