With the motion blur in front of the bus, it looks like it's more on the way to smashing into that car behind it...It's very humorous this way, although it may not be your intention...
Nicely done!

Motion blur wouldn't be in front of the bus.

I think the removal of the car is vital... the bus is parked infront of that car and now the bus is blurred at the begining of it's journey so much that it looks like it's already been moving at a specific speed!

lol ..its easy to guess ..that the bus is going to hit the car.

HEY! I went to Cheeseburger in Paradise in Caseville this year! Believe it or not, even though our family had a cottage there all my life, it was my first time going this year. MMMM, the burgers are awesome!

lol...never tested that

just looks like a shark with a tractor beam...

And you would suggest fixing it how, exactly?
Criticism is fine, but just making a snarky comment with nothing positive to add, nor any suggestion on how to fix it really doesn't contribute much, James.

Try duplicating the fish a number of times and motion blur each one a little then change the transperancy. You could also change it's size and/or shape a tiny bit ... does that help?

Great idea ... fish acutally looks smug about the whole thing!

For realism I would definatly think about the fact that this is all happening in water, the water would have a cone of distortion from begining to end of the fish`s movement also I dont think the line would be so straight, fish use their tails in a side to side motion and although at speed seem to move straight its not really the case.

try taking a picture of a moving fish... (or find a picture that hasn't been taken with a quick shutter speed (as the goal is to make it realistic - not what 'we' think it would look like); Analyse the shot, and then transfer your findings into your image (not literally of course)

Perhaps a gradient transparency mask, so it looks like the blur fades more towards the shark. Good luck!