Puppy Paper Clip

This is a puppy shape paper clip. I have not yet printed it out and I have no idea whether it will work properly. If anyone has printed the item, please let me know.

I used Fusion 360 to design this item. I am a novice for Fusion 360. I found it difficult to have constraints defined (from blue lines to black lines) during the sketching process. It took me a long time to get it done. Any experts here please tell me the best practice. Thanks.