Reminded me of the old flash games from back in the day! I'd add more subtle clues and guidance for players. Even if some things can tend to be a little more obvious, you'd be suprised how many people miss things. Or add some kind of cue to it, a twinkle or something to attact the players eyes to their objecting(if you wanna go the way of not showing obvious text)
Keep going though, use what you learned here for the next one!