Why do you want to dress Dominican, do you want to look like a cheap pimp?
Sub 20,25's lots of tin jewellery, glittery gay t-shirts, Nike Jordan (fakes)
Haitians XXXL t-shirts and massive jeans with salvaged shoes.
25-40 this is a confusing time for a Dominican guy entering manhood (late starters)and this is where the decisions go even more wrong. Plastic leather crocodile shoes, with stone washed bleached jeans, the hair is grown slightly longer at this age but still the knowledge to know what to do with it is not there and so often a trilby is used as cover. A shirt from a 'village people' tribute band, occasionally with christmas cracker cuff links.
Haitians, this age group of Haitians seem to be able to look like they are always either going to or coming from work, which is odd as they often live where they work.
35-55 seem to be the 'I don't give a $hit' years where the hand me downs from dead relatives twice their size seem to come down the line, this can lead to very interesting styles of varying success, but at this time the brugal is more important than the clothes.
Haitians around this age seem to go through eye troubles when they can't quite see where the bottom of their trousers ends and the ankle begins, odd crocs and a Chaka Khan t-shirt and a timberland check shirt accompany this style well.
55+ seems to be the time when all men buy forever trousers, a single pair of trousers that will see them through to the grave. A few shirts from the 20's has been saved for this time and goes well with washed out forever trousers, the trilby makes a return appearance and occasionally a gold watch or ring finds its way into his hands, somehow.
Haitian men seem to disintegrate at 55-60, no one knows what happens to them, some say it is voodoo tax, some say they are just so worn out by that age they Litterally turn to dust and blow away.
So if you want to dress to fit in then cool, go for it. But you're much better off just dressing how you dress now, but less warm. Don't abandon your unique identity just because the people around you have none. Be your own person, your own style, you will fit in more like that than you will trying to style out like a Dom.