I made a word puzzle with a unique gameplay style

Hello,

I just published my new puzzle game and I would like you to give some feedback about it. I recently quit my job and read 3 game design books and worked on this game about a month, and means a lot for me to get some feedback from anyone who is willing to give!

https://play.google.com/store/apps/details?id=org.dreamoriented.wordpack

Also not really trying to promote the game, my main focus on posting here is to pick other developers brains. As of now after a week of the publish, I did not really get the reaction from players that I expected. I have been looking through the game statistics and can't seem to be able to point out the main reason that players are not able to hook.

I would like to hear thoughts of any more experienced developers/gamers especially working on/like to play similar type of games.

Thank you so much!