Vb.net convert binary to image, parameter error

i have database, and i have a column that stored picture in access database
in that column i right click it and insert object which is picture from file
and it said "package" in the column  

the idea is i upload picture to 'pic' column in access database from file, and using 'querypic' table adapter query with parameter is 'comboname.text' is selected to return picture and store it as binary in byte of array

but when i convert it to image i got an error 
"System.ArgumentException: 'Parameter is not valid."

i checked my b() which is array of byte and it got result {length=40276}
can someone help me?

<pre>Private Sub cmdSelect_Click(sender As Object, e As EventArgs) Handles cmdSelect.Click
            Dim facultytabeladapt As New CSE_DEPTDataSetTableAdapters.FacultyTableAdapter
            Dim b() As Byte
            Dim s As String
            b = facultytabeladapt.querypic(ComboName.Text)
    
            PhotoBox.Image = b21(b)
    
    
        End Sub
        Private Function b21(ByVal b() As Byte) As Image
    
            Dim imgc As New ImageConverter
    
            Dim imgpic As Image = CType(imgc.ConvertFrom(b), Image) 'it has error "System.ArgumentException: 'Parameter is not valid."
            Return imgpic
        End Function