The phrase "a realistic overview" is correct and usable in written English.
It can be used when providing a practical and truthful summary or assessment of a situation, topic, or subject matter.
Example: "In our meeting, we will present a realistic overview of the project's progress and the challenges we face."
Alternatives: "a practical summary" or "an accurate assessment."
If it wants to gain a realistic overview of NHS performance on all health conditions it must look at all waiting times, for all conditions – and not selectively exclude mental illness from the picture.
To resolve the complications at this stage of adoption, try a realistic overview of how the system will streamline reporting and communication between departments.
When the London "Times" provided a realistic overview recently (15.04.2015), it felt obliged to include the phone number of the Samaritans for those feeling distressed after reading it.
However, in our opinion, the analysed time period gives a realistic overview of the magnitude and rate of side effects in a colon cancer surveillance program.
Having these results as a reference, health planners are unable to provide a realistic overview of the kind of treatments needed and consequently, cannot accurately calculate the amount of (restorative) dental materials, instruments, equipment and budget required to improve the situation adequately.
Here, we provide a realistic, current overview of skin bioprinting, distinguishing facts from myths.
A debt adviser will take an overview of your problems and work with you and your creditors to put a realistic repayment plan in place.
An overview of the security provided is discussed, as well as a performance analysis about the impact in a realistic database.
Overview of the birth and evolution of abstract art with visual background necessary to produce works of art free of a realistic representation.
Another backdrop, featuring an overview of midtown Manhattan, even featured cut-outs behind the myriad windows of skyscrapers so that, for night shots, a backlight could shine hazily through them to convey a realistic impression.
But a realistic optimist.
