Yes, I think it's the narrow width and especially the inconsistent layout. You have a header, then a button, then a bold sentence, then a paragraph, then a box with bold text, then a header, then a paragraph with an image stuck in the middle... it's all over the place. I recommend going for a small number of simple header+paragraph sections.
Ok, now I see what you mean. I have a clean new design which looks very professional. Just need to fix a few things and I'll put it up shortly.