怪兽的外貌特征可以用以下英语描述：
大小：size
形状：shape
颜色：color
皮肤质地：skin texture
体态特征：body features，例如头、脚、爪子、翅膀等
特殊特征：special features，例如触角、眼睛、鳞片、毛发等
例如：
This monster is huge in size, with a muscular body covered in green scales. (这只怪兽体型*，肌肉发达，身上覆盖着绿色的鳞片。)
The monster has a triangular shape head with big, glowing eyes and sharp teeth. (这只怪兽有着三角形的头部，大大的、发光的眼睛和锋利的牙齿。)
Its skin texture is rough and scaly, with some spiky protrusions along its back. (它的皮肤质地粗糙而有鳞状，背部有些尖锐的突起。)
The monster has four long, slender legs that allow it to move quickly and gracefully, and two large, powerful wings that enable it to fly. (这只怪兽有着四条长长的细腿，可以迅速、优雅地移动，还有两只*而有力的翅膀，可以让它飞翔。)
Its special features include a pair of antennae on its head, which it uses to sense its surroundings, and a row of sharp spines along its tail. (它的特殊特征包括一对触角在头部，可以用来感知周围环境，以及一排锋利的刺在尾巴上。)