The lining is pretty decent it gives you a unique style
your coloring and shading also give this feel off
but I fell when you colour you forget to finalize
certain lines and shades... Not saying to stop colouring
just pay attention to the piece as a full before finalizing.
I have too much to critique on the final results, but first, dont draw on your phone, you will never get a quality drawing on a small screen, believe me.