Just to stating some basic observations to avoid noise.
1. Graphic design of frontpages should follow the principle: "form follows function".
2. Mimicry of the visual style used on adobe.com will make you look good, and somehow familiar, but it is not going to make you stand out.
3. The current D population is not your primary target. Your primary target is people who stumble over dlang.org while searching on Google and spend 2 seconds glancing over your stuff.
4. You need to communicate effectively before they move on. Peek their interest. Create enough curiosity to sell them your main points.
Looking good is great, but subordinate to peaking curiosity and reflecting that you have something unique to sell.
