Ghost Fly What if?

    There was a bright white light, and Jake suddenly appeared before a small grave. A young teenage boy and a small robot stood in front of it.
    "What's goin' on?" Jake thought aloud. 
    "Jake... why?" Finn, the boy who stood in front of the grave murmured. He slumped down on the ground and began to cry. His cries came out slowly at first, and then flowed down his cheeks in waterfalls. BMO, the small robot, put his hand on Finn's leg.
    "I'm sorry, Jake," he said. "I was going to bring you back, but your soul must have ascended to one of the dead worlds."
    "Why Jake?" Finn asked, more loudly this time. "Why did you have to sacrifice yourself like that?!" Then, looking up towards the sky, tears streaming down his face and his white bear hat in his fist, he shouted, "YOU WERE MY BEST FRIEND!"
    "Finn?" Jake floated over to the human, trying to get his attention. He waved his arms and called out his name. But it was no use. He was a ghost, and couldn't get his best friend's attention.
    "So, I guess I'm dead?" Jake said. He started to cry, and he tried to hug Finn. His arms - he wrapped them around Finn's body - went right through him.
    Finn and BMO then began to leave, and Jake followed them. He watched as Finn put his hat back on, and used it to cover his wet, red eyes.
    "I'll never leave you, Finn," Jake promised. Then, glaring off into the sky, he added, "I hate you, Ghost Fly."

After watching the newest episode, "Ghost Fly", I thought of this as a "What if?" scenario. What if Jake really died? And then I drew this!
So, tell me what you think or how I can improve! Thanks!

Finn, Jake, BMO, Ghost Fly (episode and character), and Adventure Time belong to Pendleton Ward and Cartoon Network (I don't own the characters, episode, or the show.)