Sorry just speaking out what was on my mind.
I suggest you learn how to style text in your 3D program. Which I assume is Cinema 4D.
You need to learn how to add lighting.
You also need to learn how to add materials, and how to format them properly on the text.
And that's just advice for the text. Not including the random stocks in the background.
Most of the aspects mentioned above can be found on youtube.
Once you've got the hang of rendering, then come back.
Then you need to learn how to layerstyle and add effects in photoshop itself.
But that can be saved for the day you get to that stage