That image is from a modern costume warehouse. There is a basis of truth in it, but it's far from accurate. We'll start from the feet. The boots are based on a style generally popular with the Cavalier style gentleman. Truly meant for riding, and more expensive than shoes, boots would not have been the everyday choice of all.

I can't see enough of the breeches to pass judgement on them. The 1660s was a time of fashion transition and the breeches were moving towards being more fitted. These seem to fit fairly correctly, though I can't speak to how they made up the waist or knees.

I'm not entirely sure why there are two doublets being worn, sort of like two vests. In the 1660s doublets are quickly going out of fashion, the style trending towards the longer waistcoats. While the sleeves do tie on and aren't necessarily of the same fabric as the body, the costumes sleeves seem to belong to an entirely different person. Both doublets are rather utilitarian, while the sleeves are velvet trimmed in gold lace.

The cloak is accurate in style: this image from 1650 shows a similar one, it would not have been made from linen. The purpose of cloaks is generally for warmth and protection from the elements. Wool would have been the textile of choice with the exception of very expensive examples of silk.

There are a few good examples of portraits from the 1660s on this site. Overall, each piece of the ensemble probably does have "source" for why it was made, even if not of the right fabric. However, there's an assortment of time periods and levels of affluence that don't go together.