diff --git a/src/Collector.php b/src/Collector.php
index 7a0b9bd..fd49bf4 100644
--- a/src/Collector.php
+++ b/src/Collector.php
@@ -14,6 +14,14 @@ abstract class Collector
         $this->pool = $pool;
     }
 
+    /**
+     * @return \Shikiryu\WebGobbler\Config
+     */
+    public function getConfig(): Config
+    {
+        return $this->pool->getConfig();
+    }
+
     /**
      * @return string
      */
diff --git a/src/Collector/YahooImageCollector.php b/src/Collector/YahooImageCollector.php
index ad2f3f3..ea70c40 100644
--- a/src/Collector/YahooImageCollector.php
+++ b/src/Collector/YahooImageCollector.php
@@ -22,13 +22,13 @@ class YahooImageCollector extends Collector
      */
     public function getRandomImage()
     {
-        $word_to_search = $this->generateRandomWord();
+        $word_to_search = $this->getConfig()->get('collector.keywords.keywords', $this->generateRandomWord());
 
         $client = new Client();
         $crawler = $client->request('GET', sprintf(self::SEARCH_URL, $word_to_search));
         $imgs = $crawler->filter('noscript img');
         if ($imgs->count() < 20) {
-            return $this->getRandomImage();
+            return $this->getRandomImage(); // FIXME possible infinite loop if keywords is given
         }
 
         $img_url = $imgs->eq(random_int(0, $imgs->count() - 1))->attr('src');
diff --git a/src/Pool.php b/src/Pool.php
index 9d0e2ae..f2e8558 100644
--- a/src/Pool.php
+++ b/src/Pool.php
@@ -21,16 +21,23 @@ class Pool
      */
     protected $nb_images = 0;
 
+    /**
+     * @var \Shikiryu\WebGobbler\Config
+     */
+    protected $config;
+
     /**
      * Pool constructor.
      *
      * @param array $config
      */
-    public function __construct(array $config)
+    public function __construct(Config $config)
     {
+        $this->config = $config;
+        $pool_config = $config->get('pool');
         $collectors = [];
-        if (array_key_exists('collectors', $config)) {
-            $collectors = $config['collectors'];
+        if (array_key_exists('collectors', $pool_config)) {
+            $collectors = $pool_config['collectors'];
         }
 
         $all_collectors = Collector::getAllCollectors($this);
@@ -44,18 +51,25 @@ class Pool
             }
         }
 
-        $pool_dir = $config['directory'];
+        $pool_dir = $pool_config['directory'];
         if (!is_dir($pool_dir) && !mkdir($pool_dir) && !is_dir($pool_dir)) {
             throw new \RuntimeException(sprintf('Directory "%s" was not created', $pool_dir));
         }
 
         $this->pool_directory = $pool_dir;
 
-        $this->nb_images = $config['nb_images']; // FIXME
+        $this->nb_images = $pool_config['nb_images']; // FIXME
 
         $this->prepareCollectors();
     }
 
+    public function getConfig()
+    {
+        return $this->config;
+    }
+    /**
+     * @return string
+     */
     public function getPoolDirectory()
     {
         return $this->pool_directory;
@@ -100,6 +114,9 @@ class Pool
     {
         foreach ($this->collectors as $collector) {
             $directory = $collector->getPoolDirectory();
+            if (!is_dir($directory) && !mkdir($directory) && !is_dir($directory)) {
+                throw new \RuntimeException(sprintf('Directory "%s" was not created', $directory));
+            }
             $images = glob($directory.'/*.{jpg,gif,png}', GLOB_BRACE);
             if (count($images) < $this->nb_images) {
                 $collector->getRandomImages($this->nb_images - count($images));