Not sure if this is the right place to post these......
This topic is fine, and "People and Portraits" would be OK too. The categories are just general themes, and we're not overly picky about which one you use.
As a guideline, pick the category that fits the most important aspect of the image. For example, a landscape shot could be in Landscapes or Special Techniques, depending on what you're emphasizing. Even if you use a special technique such as HDR or B&W conversion, if the main thing is the image itself, then it could still go in "landscapes" even though you did some work in Post Processing.
Is your post saying "Hey, check out this cool old barn I found, isn't it awesome!?!", then pick the "Scenics" category. On the other hand, if you're talking about how you used Nik Silver EFX (however they speel that) to do the B&W conversion, then it's probably best in "Special Techniques".
If the staff really feels the discussion will work better in another topic, we'll move it. We don't do that too often, and if it should happen, we won't write you a nastygram about picking the wrong topic, we realize it's a judgement call, so it's not a big deal at all.
In short, just pick one and don't worry.