Looks like a german restaurant curry ... might need some totally unrelated peas in it to qualify, though

You didn't say what exactly was wrong with it but I don't think that the defrosted tikka are a problem. At most they'll become a little rubbery but taste usually remains good (at least to me).
Personally, I like my curries fairly "dry", so for me the reduction is not too heavy in the image. Not ideal but also not much of a problem unless something got burnt in the process?
I've never used Mr. Naga but have used a different chili pickle for various (non-BIR) dishes and it ruined every single dish once I put it in. So, unless you are a Mr. Naga lover I wouldn't start adding it to curries myself. If you need it hot then add some fresh chilis or chili powder instead.
Since the mix powder contains most of the spicing I personally suspect it to be the "problem". Maybe the other mix powder simply works better with the dishes in the book. It could explain why you didn't find the dish "interesting".
I don't think the Butter Ghee caused the dish to be "not quite interesting". I would actually expect either a "Yuk" or a "Yummy" regarding the butter ghee instead. Surely not a "not interesting".