That looks great ... although I'd need about 100 cases that size and a much bigger room to put them in.
I'm not sure I'd use Blutack though. Supposedly it's non-reactive, but it does often leave marks on paper, wallpaper, etc. and can rip paint and wallpaper off walls if it hardens. You might be better off getting some proper figure stands - I've seen them in black and clear - they are a bit expensive, but you could use Blutack under those without potentially ruining your figures.
You could probably get cases made by a company that makes acrylic / perspex boxes, brochure stands, etc., but again they'd be expensive. (A quick Goolge search turns up
Display Tactix in Auckland, Wellington and Christhurch, but there are many others.) Those who have made things like their own armour could make their own display cases as well ... although cutting up acrylic / perspex sheets and gluing them is a messy and stinky job. Glass cases would cost much more.
If you have lots of (spare time and money), you could also put printed backdrops on the back and side walls and build up the space inside with trees or whatever to create great dioramas. Places selling model trains might be a good place to find useful items for doing that.
The Apple laptop in the background along with the Star Wars figures proves you're a person of great taste and superior intelligence.
