I'm coding a slot game for learning.

Here's the source code. My questions are below.

unit Unit1;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, Windows, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
  ExtCtrls, ComCtrls, Menus, ActnList, Spin, FileCtrl;

type

  { TForm1 }

  TForm1 = class(TForm)
    FloatSpinEdit1: TFloatSpinEdit;
    Guthabenlb: TLabel;
    s4: TLabel;
    s5: TLabel;
    s6: TLabel;
    s7: TLabel;
    s8: TLabel;
    s9: TLabel;
    Timer3: TTimer;
    Winlb: TLabel;
    Loselb: TLabel;
    slotbn: TButton;
    s1: TLabel;
    s2: TLabel;
    s3: TLabel;
    Timer1: TTimer;
    Timer2: TTimer;
    procedure FormCreate(Sender: TObject);
    procedure slotbnClick(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Timer2Timer(Sender: TObject);
    procedure Timer3Timer(Sender: TObject);
  private
    { private declarations }
    FRollen : array [0..2, 0..9] of String;
  public
    { public declarations }
  end;

var
  Form1: TForm1;
  wins,loses : Integer;
  guthaben : Double = 10;

implementation

{$R *.lfm}

{ TForm1 }

procedure TForm1.slotbnClick(Sender: TObject);
  begin
  Guthaben := Guthaben - 1.00;
  Guthabenlb.Caption := FloatToStr(guthaben) + (' €');
  Timer1.Enabled := True;
  Timer2.Enabled := True;
  slotbn.Enabled := false;
end;

procedure TForm1.FormCreate(Sender: TObject);
var
  i: integer;
  j: integer;
  n: integer;
  digits: TStringlist;

  begin
  Digits := TStringList.Create;
  try
    for i := low(FRollen) to high(FRollen) do
    begin
      for j := low(FRollen[i]) to high(FRollen[i]) do
        Digits.Add(IntToStr(j));

      for j := low(FRollen[i]) to high(FRollen[i]) do
      begin
        n := Random(Digits.Count);
        FRollen[i, j] := Digits[n];
        Digits.Delete(n);
      end;

    end
  finally
    Digits.Free;
  end;

  for i:=low(FRollen) to high(FRollen) do
  begin


  end;
end;



//==================================================================================================\\
// Drehen der Slots im Zufallsmodus
//==================================================================================================//
procedure TForm1.Timer1Timer(Sender: TObject);
begin
s1.Caption := IntToStr(Random(9));
s2.Caption := IntToStr(Random(9));
s3.Caption := IntToStr(Random(9));
s4.Caption := IntToStr(Random(9));
s5.Caption := IntToStr(Random(9));
s6.Caption := IntToStr(Random(9));
s7.Caption := IntToStr(Random(9));
s8.Caption := IntToStr(Random(9));
s9.Caption := IntToStr(Random(9));
end;

//==================================================================================================//



//===================================================================================================\\
// Gewonnen / Verloren abfrage
//===================================================================================================//
procedure TForm1.Timer2Timer(Sender: TObject);
begin
  Timer1.Enabled := False;
  Timer2.Enabled := false;
  if (s1.Caption = s5.Caption) and (s1.Caption = s9.Caption) then
  begin
    Guthaben := Guthaben + 5.00;
    Inc(wins);
  end
  else
  if (s1.Caption = s4.Caption) and (s1.Caption = s7.Caption) then
  begin
    Guthaben := Guthaben + 5.00;
    Inc(wins);
  end
  else
    if (s2.Caption = s5.Caption) and (s2.Caption = s8.Caption) then
    begin
      Guthaben := Guthaben + 5.00;
      Inc(wins);
    end
    else
      if (s3.Caption = s6.Caption) and (s3.Caption = s9.Caption) then
      begin
        Guthaben := Guthaben + 5.00;
        Inc(wins);
      end
      else
        if (s3.Caption = s5.Caption) and (s3.Caption = s7.Caption) then
        begin
          Guthaben := Guthaben + 5.00;
          Inc(wins);
        end
        else
        Inc(loses);
        slotbn.Enabled := True;
        Loselb.Caption := 'Loses: ' + IntToStr(loses);
        Winlb.Caption := 'Wins: ' + IntTostr(Wins);
        end;

procedure TForm1.Timer3Timer(Sender: TObject);
begin
  if (guthaben = 0) or (guthaben < 0) then
  begin
  Timer3.Enabled := False;
  MessageBox(handle,'Du hast verloren!','Verlierer!',MB_OK);
  close();
end;

end;

//======================================================================================================\\


end. 

How can I replace the labels through icons 16 x 16 pixels?

How can I adjust the winning sum according to the icons? (for example 3 crowns give you 40 € and 3 apples only 10 €)

How can I adjust the winning sum with a sum for every round?