The sprites are nice and the palette gives off that sunset vibe which I like a lot! As for the gameplay, it's hard to get into since the progression is quite slow and the guards seem to catch up to you really quick. I think it could be interesting if you added something like a metal detector, so you can first figure out where the treasure is and then plan out a route to distract the guards and then go dig it up instead of just randomly digging and hoping you find something.