try make him move one full body lenght on each arm stroke and double each frame to slow it down

.. this is not bad for only 3 months keep it up you can only get better and better ..

thanks i am trying to improve the framerate and do better animation i am still learning only been doing drawing and art for less then 3 months i will do my best on the next one

The framerate feels too low for the amount/speed of motion. The slower parts like the background and bubbles work great at this framerate, but the swimming is choppy and barely registers as swilling, it reads more like teleporting because the character moves too much between frames.