It is completely plausible to bring the comfort of your own home into your home office whilst still keeping the look professional.
For decorating your home office, the best way to approach the décor is by considering what will suit your office desk. The office desk sets the ambience in any office and it is the largest piece of office furniture in the home office so this should be considered carefully.
If you find that you are limited with space in your home office yet still require a filing cabinet or computer desk then you need to get more out of your office desk by ensure you have the facilities, e.g. file in the bottom draw with hanging files which can be labelled.
Just because you are creating a home office doesn’t mean you have to have an area that is stiff and stark, you need to enjoy your working area because much of your time will be spent there.
The office chair you are using should support your back and be completely comfortable because you will be spending around 8 hours a day in it. Office chairs with wheels make movement much easier when you are sat at your office desk.