Update utils.py

utils.py

@@ -18,7 +18,7 @@ def filter_invalid_urls(urls, photo_ids):
     valid_image_urls = []
     for i, res in enumerate(results):
         if res and res.status_code == 200:
-            u = f"https://unsplash.com/photos/{photo_ids[i]}/download?w=100"
+            u = f"https://unsplash.com/photos/{photo_ids[i]}/download?w=320"
             valid_image_urls.append(u)
             valid_image_ids.append(photo_ids[i])