In this example, what would make more sense:
MITTE MIHI PICTURAM PRODUCTI
PICTURAM PRODUCTI MIHI MITTE
Latin Language Stack Exchange is a question and answer site for linguists, teachers, and students wanting to discuss the finer points of the Latin language. It only takes a minute to sign up.Sign up to join this community
Generally, imperatives go first, even though verbs usually go last of all in sentences or clauses. It's correct either way, but the imperative is an important part of a sentence so it gets precedence.
Allen and Greenough's Latin Grammar says:
The verb may come first, or have a prominent position, either (1) because the idea in it is emphatic; or (2) because the predication of the whole statement is emphatic; or (3) the tense only may be emphatic.
Since the imperative is the point of the sentence, it often precedes everything else, unless you want emphasis on something else.
The future imperative forms, which aren't common and are dated, only usually used in statutes and laws, often come last of all in a sentence, just as a normal verb often does.
I'd check out Allen and Greenough's Latin Grammar if you want to see about syntax and other things yourself. It's usually a very concise yet in-depth look at Latin grammar, and they give plenty of examples in their sections on the imperative and word order. You can find an online version here.