Custom Wood Block

Hi, I need help trying to render my wood block so it would kind of look like bamboo, but the block just always look like a regular block. Here is my code:

package mymod.blocks;

import net.minecraft.block.Block;

import net.minecraft.block.material.Material;

import net.minecraft.client.renderer.texture.IconRegister;

import net.minecraft.creativetab.CreativeTabs;

import net.minecraft.util.Icon;

import net.minecraft.world.IBlockAccess;

public class PapayaWood extends Block{

private Icon PapayaTreeBlock; //Side of Block

private Icon PapayaTreeBlockTop; //Top & Bottom of Block

public PapayaWood(int par1)

    {

        super(par1, Material.wood);

        this.setCreativeTab(CreativeTabs.tabBlock);

    }

    /**

    * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)

    */

    public boolean renderAsNormalBlock()

    {

        return false;

    }

    public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)

    {

        return false;

    }

    /**

    * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two

    * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.

    */

    public boolean isOpaqueCube()

    {

        return false;

    }

@Override public void registerIcons(IconRegister iconRegister)

    {

this.PapayaTreeBlock = iconRegister.registerIcon("mymod:PapayaTreeBlock");

    this.PapayaTreeBlockTop = iconRegister.registerIcon("mymod:PapayaTreeBlockTop");

    }

public Icon getBlockTexture(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)

    {

if (par5 == 0)

        {

            return this.PapayaTreeBlockTop;

        }

        else if (par5 == 1)

        {

            return this.PapayaTreeBlockTop;

        }

        else

        {

        return this.PapayaTreeBlock;

        }

    }

        public Icon getIcon(int par1, int par2)

        {

            return par1 == 1 ? this.PapayaTreeBlockTop : par1 == 0 ? this.PapayaTreeBlockTop : this.PapayaTreeBlock; // 1- Top    0- Bottom  else: Side );

        }

}