I've just started pruning the roses, but I'm not too sure about a couple of
them. One type, I think might be a Carpet Rose - how do I go about pruning
that, do I need to thin it out, as well as shorten it?

Another grows far taller than the other ones, I assume it's a taller
variety, do I need to leave it much taller after pruning?

Also I have some miniature roses, I'm fairly sure you just chop the bush
right back, am I right?

The normal type of roses I'm fine with.

Any help appreciated. TIA

Jen