A wish for wings

"Never have I longed so much for wings 
Wings represent freedom and flight
I wish I could be just like that bird be free and sing
But I'm not so instead I'll spread my wings of liberty and fight"


I hope you like my poem I made to kind of explain my drawing. I know it's not the best poem and there might be some wrong English in it, but recently I realised I actually like making poems. So I'm just trying it out. 
The drawing I made is about Mikasa Ackerman, a character from the anime Attack on Titan and she looks at a flying bird. Some envy and sadness overcomes her and she wished she had wings to escape these walls. To be able to get out of this cage far away from the titans. But she can't so instead she'll fight with the survey corps that have a mark on their back , better known as the wings of liberty  

Click here for the speedpaint

The colouring part took me about 3 hours and I think that the lineart and sketching part took me about 2 hours so that makes a total of 5 hours I'm so good at math  
I used a bamboo pen & touch tablet and Paint tool Sai