Good game and honestly this can be a lot better and games like Hero's Adventure has this kind of bad artstyle before they changed the character character desgins and portrait artstyles to become much better and eye-candy.
Games with romance are very good to play as it makes the plot and gameplay not so boring and players are always looking for good artworks especially if it's slightly revealing.
I hope the dev can expand the realms more, stronger enemies, more skill choices, more gears, more enemies, more characters and so on, and needs a little bit polishment on homescreen designs.
There's actually better and cheap graphic designers on linkedIn and most of them are students yet very talented, I suggest to visit that app.
God Bless and stay healthy ;)