Image uploading structure using Intervention and Dropzone

Hi, I created a image uploader using Intervention and Dropzone. Now I save in db the:

• file_size
• original_name
• actual name (uniqid().'.jpg')

With Intervention I create a lot of thumbnails, please let me know your opinion in how to save images on server.

uploads/id/57194e6fc31d5.jpg uploads/id/300x300/57194e6fc31d5.jpg uploads/id/150x150/57194e6fc31d5.jpg uploads/id/50x50/57194e6fc31d5.jpg

or 2.

uploads/id/57194e6fc31d5.jpg uploads/id/57194e6fc31d5_300x300.jpg uploads/id/57194e6fc31d5_150x150.jpg uploads/id/57194e6fc31d5_50x50.jpg