I found him highly intelligent and much subtle than his public image .

我发现他聪明过人，比他表面的形象精明得多。

youdao

Tony Banks is a parliamentary character who has made more impact on the general public than most of his colleagues, with his "man of the people" image.

BBC: Tony Banks

With the speech, Mr. Kim took his latest step to create a public image that is more like his grandfather, who could be gregarious in public settings, than his father, who was more reserved and whose voice was broadcast only once.

WSJ: Defiant Kim Ramps Up Rhetoric