Sono senza parole!
Another very important thing is to practice! Start a novel and you will soon see what you don't understand and what you aren't using right. Or you can just write whatever. But always be very critical of yourself. Its important to always improve and grow. But don't be too harsh either. Too much negativity will just drag ya' down. Always research writing techniques you don't' know how to use but want to use. DONT FORGET TO PRACTICE!!
The best I can say is that writing is a skill that takes true effort, and true determination. You won't be fantastic overnight, but can still write something fantastic overnight. Each writer is different, and each style is unique. By being passionate and working on what you know should be improved for yourself you should be able to go as far as you are willing to run.
In the end, just write. That's really the key. The road can be harsh and grueling, but they say following your ambitions, interests, and/or dreams is worth it.
I'm going to favorite it, because this represents what all writers do with their works - convert inspiring ideas into living creatures.
Your image reflects it ^^
Prose aside, lovely job! The colors are fantastic and the concept even more-so.