Shades of the same colour can look good together. Not sure what to recommend for scent, but others here will be able to help.

i dont know if you can grow one in your garden but my climbing rose has a lovley fragrance and seconds as a good anti-burgler plant around the fences unless your lucky enough to live in better area .

English Miss or Fragrant Delight, both small/medium floribundas, for fragrance. Or Korresia.
As for the colour question, that's a matter of personal preference - I like to see roses in different shades of the same colour range rather than a mix of colours such as one red, one yellow, one apricot and so on. With only five roses, there's more impact if they're similar colours.

I planted seven new repeat-flowering floribunda roses in the summer - all fragrant, in shades of apricot - tawny. I've been delighted with them. I chose them for the similarity of form and height, plus the colours that 'go' together in the same tonal range, and got them from Cant's and Fryers - both reputable growers.

I'd be a bit wary of a stockist's special offer, if you have no choice of colours.

I can recommend 'Hot Chocolate' for its wonderful shape, colour and fragrance, plus long-flowering.

I would recommend Fragrant Cloud, it is highly perfumed.

I have decided to stick with variations of one shade-- thinking of orange to yellow, but will be looking at Fragrant Cloud before committing.
Thank you all, it so good to have somewhere to chat about these things.

A word about Fragrant Cloud - its okay, bit of a weedy grower I find, bit messy and frankly, yes, the flowers are perfumed, but you don't exactly walk past and smell it,you have to bend down to tell. I'm somewhat disappointed, bought two early in the year, am now feeling inclined to have them out. Listed as 'fragrant' rather than very fragrant, as in Fragrant Delight, which is much more fragrant, although taller. If I compare Fragrant Cloud to the Korresia I bought, no contest - healthier, bushier growth, slightly more noticeable fragrance.