Glow Up, Accel, and Scarlet Dark Stream are perfectly fine songs, but they are far from the best songs on the internet. I think people are looking for better music. The bar has been raised high, and it takes a lot of work to be able to reach it, but I believe you can. I believe I can too. Eventually. :]
Don't use review count as an indicator of music quality. There are some amazing ultra-cool musics on Newgrounds that don't get any reviews. There are musicians who release continuous top-quality work that hardly get any fans. You drawn in reviews partly by music quality, partly by advertisement, partly by who ya know, and part of it is just dumb luck. :o)
You can try to boost your publicity by posting your best music on the Newgrounds reddit page. You can also upload your best LMMS music to a Soundcloud account and add it to the LMMS music group list. Also, are you aware of the Newgrounds Audio Group thingy on Facebook? Linky: https://www.facebook.com/groups/newgroundsaudiowip/
Sometimes when I comment on other people's music or follow them or like their music (on Newgrounds or Soundcloud), they follow that back and I get a surprise review from a new person. :) And sometimes when I want some critical feedback, I kindly directly ask an applicable person if he/she will write a review.
K-Pone
I hope I can help you fixing that
Darknessbreaker
It worked, thanks :)