[Supperman]

Hello. I'm new here.
I would like to know the proper adjectives to modify the noun "vocabulary".

(Wanting to mean "small" )
I have poor vocabulary in English.
I have poor English vocabulary.
My English vocabulary is poor.
My English vocabulary is short.
My English vocabulary is small.

(Wanting to express "big")
I have a lot of vocabulary in English.
I have much English vocabulary.
I have advanced English vocabulary.

Which is correct and which is not correct?
How do you say, meaning "small" and "big"?
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And one more thing;
"Vocabulary" is a countable noun, so I had better use it as "vocabularies" ?
I somehow feel "vocabulary" is not a countable noun in this context.

Thank you.