So be sure to provide motivation for your work, provide background about the problem, and supply sufficient technical details and experimental results.
When you give a talk, ask yourself, “What are the key points that my audience should take away from the talk?
A good way to check this is to quickly transition back and forth between the two slides several times.
If you see any jitter, then correct the slide layout to remove it.
In either case, you have done some research, and you need to convince the audience of 3 things: the problem is worthwhile (it is a real problem, and a solution would be useful), the problem it is hard (not already solved, and there are not other ways to achieve equally good results), and that you have solved it.
If any of these three pieces is missing, your talk is much less likely to be a success.
Think about the presentations you attend (or have attended in the past), especially if they are similar in some way to yours. You will have to customize your presentation to its purpose.
Even if you have previously created a talk for another venue, you may have to make a new one, particularly if you have done more work in the meanwhile.
If you can't figure that out, it suggests that you have not done a good job of understanding and organizing your own material. Start your talk with motivation and examples — and have lots of motivation and examples throughout.
For the very beginning of your talk, you need to convince the audience that this talk is worth paying attention to: it is solving an important and comprehensible problem. (That's boring, and it's too early for the audience to understand the talk structure yet.) Outline slides can be useful, especially in a talk that runs longer than 30 minutes, because they helps the audience to regain its bearings and to keep in mind your argument structure.