Hi, this is my first finished render ever.
Almost everything was done with blender and the compositor, I only added the text in Gimp.
Any piece of advice on what could be improved would be welcomed, and I also can give some info on how the image was made.
Nice work, I like it! Maybe brighten the bottle slightly to make it clearer.
welcome to the forum 
Thank you, I’ll try that. I may have overused the glare node in the compositor.
Nice one, smart idea, well done.
I agree, possibly lighten the bottle; Blender orange is a little less red. I would shrink the text slightly and move it up and to the left to separate it from the bottle. As it is it looks more like a watermark than an intentional image element.