Hmmm...
this character has some sort of mixed styles that makes it difficult to digest...
I don't know exactly where are those strange things... maybe the eye is not proper to the whole design? do I miss an eyebrow?
Also those bumps on the stomach... I don't know if they make it fat or muscled.
I also dislike the deformed curves of the tail. I think that a smooth tail would make it more stylised.
Last thing, the light comes from the top left of the image (behind the camera) according to the eye bright and the shading of the surf table. Shouldn't the dropped shadow be at the right?
I cannot gift your ears telling that it is a good design. You have demonstrated a very high level for drawings so I want you to continue on that line.
Regarding to the speedo... better I don't comment
This is the risk to expose your art work here
-G