A vast and mighty dinosaur stands before you, towering with a long stretching neck. Its head is small with sharp pointed teeth. Its body is armored in spikes, and its long and thin tail sweeps its surrounding. Its four short legs extend down, sturdy and ready to support its grandeur. With its crisp green skin, it gives an almost majestic feel to its presence.
To make this dinosaur stand out, try using multiple shades of green. You can also contrast the green with hints of black, or other dark shades, to emphasize its spikes and teeth. To bring along a feeling of a lost age, you can add some lighter hues, such as yellow or light green. Finally, you can also try adding some details, like highlights around its neck or eyes, to make it more alive.