Length[DeleteFile/@FileNames["index.html","C:\\drorbn\\AcademicPensieve\\Album",2]]

SetDirectory["C:\\drorbn\\AcademicPensieve\\Album\\2021.09.17_Evening_Walk_in_Tommy_Thompson_Park"];
(Interpretation[ImageResize[Import@#,400],#]->"")&/@FileNames["*.jpg"|"*.jpeg"|"*.png"|"*.mp4"]

With Olga, about 10.5km.

{
"TitleNotes" -> "With Olga, about 10.5km.",
"ImageComments" ->{}
}