Sadly, your map has been rejected.
Your map is very disjointed. I felt that the different concepts, such as the computer producing the minecraft world were interesting when you started the skyblock section, but the moment you hit the iron bars, and a random pixel art sword, you lost me completely.
It felt like I was playing two different maps, and they did not link together well enough. Also, this map is too easy to be a hard map. It feels much more suitable to being a medium map.
Ways to improve this map would be, try not to change the theme too much. I didn't get why I was suddenly in a prison cell, or a pixel art sword. The skyblock section looked nice, and you could easily have ended it there to make a nice easy map.
Remember, you can always re-submit this map, or create a new one, at a later date.
~ Billy