A very nice effort, but it lacks in some ways.
First your reference is for the ships you posted the funnel has a $ sign, a thing which also is supported by the following picture
, although the ship itself looks to have more derricks. Some more details will help your drawing.
One important aspect is the credits, which you need to correct, using the well established Arial font size 10 for the country and ship's name and size 8 for your name and any other remarks below the first line.
I would also try to use a slightly darker shade to represent the black hull color and funnel.
Thank you Kim for the crest
"Never fear to try on something new. Remember that the Titanic was built by professionals, and the Ark by an amateur"