Looks like you have got a bit of font squishing and stretching going on there, which is never a good idea.
I like the penguins.
(hey I'm from Pittsburgh)
but you have too many casual fonts (can't tell if it's the same one but stretched) going on.
Try the phone # and refrigeration in something like Impact, and Graham in caps and lower case if that is an option.
Your lettering is way too big on the sides, too.
Leave some breathing room.
You're terrifying those poor birds.
Why is refrigeration so low on the bottom of the van back?
Is it melting?
Are you married to the Graham font? Too casual for main copy in this case, IMO. I like the graphics, though.
For starters.... the ice doesn't look right being so blueish.
Why must all the copy be italicized ??
In a monochrome scale, you have just about everything around 4 to 6. Turn this into a grey-scale and you'll see what I mean.
Are you not doing anything to the roof ?? Reason being.... the icicles will be appearing from nowhere in the real-world.
Here's what I mean by real life circumstances.........