this game is too boring...  There's no such thing as captivating visuals like game cover... So.. i can't this thing is a game but i'll encourage you with me 2$.
at last i love your game cover artwork!

[maybe this will help]
1.add little bit animation
2.make UI better
3.don't use readymade background
4.don't make too long conversation
5.add little bit other gameplay

[sorry about my english..]