good job for pulling through
points of improvement:
-add some lag to the camera movement relative to the player, it's too fast and kind of nausea inducing
-consider coyote jump next time, also don't add any acceleration to the left/right movement for a precision platformer
-you do not need unreal engine for this, there are many other lighter game engines that would accomplish the same thing and won't result in a 250mb zipped download