Hi Monsters & Co., I agree, the strings after the intro come a bit too hard, I now realize I should have had them fade in more softly. As for the ending, the finale is always the most time consuming part for me and since I had almost no more time after the weekend I decided to fade it out and focus on improving the rest of the composition as a whole.
I also definitely agree with Bison Warlock, I need to improve (more like learn) mixing, if any other composer has tips about it, please write a comment!