I like the shading of the green monster especially. The computer display to the left looks good too. I'm wondering what the yellow/tan items are that don't have shading. The shading gives the graphics a more professional look, though it depends on the genre, retro, modern style game, etc.
The ghost up top I'm guessing is the main player who has to navigate through the board to complete an objective, possibly eliminating the green monsters? Just taking a guess based on the screen.