From the looks of your screen snaps, it seems you did something right, in that the first part of the installation has completed, and you're being invited to click the "continue" button to proceed to the next step.
So, do that (if you haven't already). When the process is fully completed, it'll say so. At that point you can eject the CD by dragging its image to the trash can (which will turn into an Eject icon as you get near it).
Photography software can be notoriously complicated to install. For a newcomer, it would not be the software I'd choose to introduce the process! Just be glad it's not Leica software, by far the worst I've ever had to deal with (on Windows, at least... wouldn't want to inflict that stuff on a poor innocent Mac!).
The process is usually simple, and there's usually a readme file that explains how to do it. 90% of the installations you're likely to meet will fall into two categories: (1) Drag the application icon to your Applications folder (which you'll find by double-clicking the hard disk icon on your desktop), or (2) double-click the application installer and it'll take it from there. Similarly, 90% of the time, uninstalling an application is as simple as dragging it from the Applications folder to the trash.
You'll get used to it with time. We're here to help, and I second the recommendation of another poster to take advantage of the free trainings at the Apple Store. They're great!
Have fun with your new machine.
