This eerie green zombie frog stands out against the stark white background. Its large black eyes and exposed sharp teeth give off a menacing air, while its bumpy skin and significantly larger hind legs add an element of the peculiar. To create a more sinister look, color the frog in deep shades such as dark green and black, with lighter touches of gray or off-white for contrast. Add some texture by adding a few lines here and there to make the frog look frightful.