many-to-many image upload

namespace WL\Test\Domain\Model;

use TYPO3\Flow\Annotations as Flow;
use Doctrine\ORM\Mapping as ORM;

/**
 * A Master
 *
 * @Flow\Entity
 */
class Master {

    /**
     * The name
     * @var string
     */
    protected $name;


    /**
     * @var \WL\Test\Domain\Model\Image
     * @ORM\ManyToMany
     */
    protected $image;
    /**
     * Get the Master's name
     *
     * @return string The Master's name
     */
    public function getName() {
        return $this->name;
    }

    /**
     * Sets this Master's name
     *
     * @param string $name The Master's name
     * @return void
     */
    public function setName($name) {
        $this->name = $name;
    }


    /**
     * @param return \WL\Test\Domain\Model\Image $image
     * @return void
     */
    public function setImage(\WL\Test\Domain\Model\Image $image) {
        $this->picture = $image;
    }

    /**
     * @return \WL\Test\Domain\Model\Image
     */
    public function getImage() {
        return $this->image;
    }
}
?>
###########################################################################################
<?php
namespace WL\Test\Domain\Model;

use Doctrine\ORM\Mapping as ORM;
use TYPO3\Flow\Annotations as Flow;

/**
 * An image
 *
 * @Flow\Scope("prototype")
 * @Flow\Entity
 */
class Image {

    /**
     * @var string
     */
    protected $title;

    /**
     * @var \TYPO3\Flow\Resource\Resource
     * @ORM\ManyToOne
     * @Flow\Validate(type="NotEmpty")
     */
    protected $originalResource;

    /**
     * @param string $title
     * @return void
     */
    public function setTitle($title) {
        $this->title = $title;
    }

    /**
     * @return string The title
     */
    public function getTitle() {
        return $this->title;
    }

    /**
     * @param \TYPO3\Flow\Resource\Resource $originalResource
     * @return void
     */
    public function setOriginalResource(\TYPO3\Flow\Resource\Resource $originalResource) {
        $this->originalResource = $originalResource;
    }

    /**
     * @return \TYPO3\Flow\Resource\Resource $originalResource
     */
    public function getOriginalResource() {
        return $this->originalResource;
    }
}

#####################################FORM########################################
    <f:form action="create"  name="newMaster" object="newMaster" enctype="multipart/form-data">
        <label for="name">Name</label>
        <f:form.textfield property="name" id="name" />
        <f:form.hidden property="image.title" value="newpic"/>
        <f:form.upload property="image.originalResource" />
        <f:form.submit value="Create" />
    </f:form>