It's a bit difficult without an image to give me an idea of the areas you are wanting to treat and the overall look and style you are trying to maintain or enhance. Typically, curtains and Romans can work very well in combination within the same room and even with the same fabric as this image, I think, illustrates: The use of pelmets (box cornices) in combination with the curtain treatments and Romans help tie-in the two treatments and help balance the stronger shape, line and form of the Roman's on their own. I agree with @chookchook2, the use of coordinated fabrics is preferable, if that is an option that is open to you. Also notable with this image is the use of a Roman and curtain in the same window treatment. Another example of the use of curtains in combination with Romans. In Australia, it is unusual to have unlined Romans. Soft traditional lined Romans are more typical here, and please ensure that the Romans you purchased are lined with pre-stiffened proper Roman lining and not the much cheaper curtain lining which can lead to 'sagging' over time. Rest assured, it is not at all uncommon for Romans and curtains to be used in combination.

I am a big fan for plantation shutters you will be excited you did! You will make your money back & ease of re sale as people want them .Otherwise... If not With your kitchen get a professional in and get a tint on your window you can see out but they cannot see in until night then a simple blind will suffice. Lounge rm attach to ceiling!!.. to floor sheer curtains with a good colour curtain behind going the whole width of the wall.. bedroom a Roman blind... take advantage of your floor boards and do it properly the first time and save money!

I love rollerblinds for their neat, sophisticated look. Venetians are a nightmare to clean... x) Plantation shutters are worth the investment. Low maintenance and good in wet areas where fabrics/wood may not be so good. I have a mix of plantation shutters and rollerblinds, with a few curtains. :)

We have done a lot just like that. Typically we put a sheer on a track over the window / door and a plain thermal roller blind inside the frame (behind the curtain) The the same roller blind is put in the kitchen. This gives you the ability us the roller behind the curtain as a lining for night or cold days and creates flow between the kitchen and dining space. A thermal roller is very practical in a kitchen as they are cleanable and roll up out of the way when not in use. Here's a dining room that I did. In this case we used two different fabrics and both are in the dining room / kitchen. (in this example its not over a working kitchen space but it would work just the same) This photo shows how the linen drape and rollers mix over a door and a separate roller blind looks next to it. Its super functional, cost effective and right on trend. In your case I would keep both the roller fabrics the same. Hope this is of help :)