Did you upload the correct file? This is just a slightly sped-up version of Celeste's B-side Mirror Temple theme... https://www.youtube.com/watch?v=iKnwVvXkWq0
An actual remix or cover would have been fine, but a straight reupload like this is not what Newgrounds' audio portal is used for. I see that you've uploaded other music before, why not take a stab at an original arrangement of the tune instead?
EDIT: Nice to see it updated. The arrangement is fine and I like the synths used around 0:35, but I feel it could have played a bit more with adding new rhythms/harmonies. Even changing something as small as one chord can completely alter the feel of a section and make it feel more unique. Same goes for a neat countermelody or an extra percussion element in the background. A slightly faster tempo would make it feel more intense as well, like a true battle against a giant spider.