He was a man of very little imagination, in sharp contrast with his brother, who had, perhaps, too much.

他是一个缺乏想象力的人，这与他的兄弟形成鲜明对比，后者的想象力也许太多了。

Don't jump steps and try expressing complex thoughts that are in sharp contrast with your current level, though.

不过，不要跳跃式地尝试表达与你目前水平形成鲜明对比的复杂想法。