What's interesting about this and some other images I've seen, is that you've got two very different focuses on a majority of your artwork: Touhou, and various historical pieces relating to military vehicles and/or soldiers. The two are worlds apart, and yet it's interesting to see you take Touhou characters out of their element (ie. feudal Japanese fantasy world) and somewhat combine the two while capturing the characters themselves still true to what we know and love about Touhou. It's not a very common thing to see in art like this.
>>two very different focuses Yes, two focuses. Of course, I always wanted to draw something else, but I still have no abilities nor powers to do it.
>>feudal Japanese fantasy world I usually imagine Gensokyou somewhere between Meiji era and present day. It allows to draw some interesting details from time to time.
>>It's not a very common thing to see in art like this. I try to mix my poor knowledge about world history, spirit of wonders so characteristic of Touhou and some portion of common sense. I hope that final result is not too weird.
Ahh, well, a good question. All your pictures have a unique and great style. But, I found this picture to stand out due to it simply being rather unusual, in a good way. The reason i'd prefer this over your other pictures, it's quite hard to explain actually, but it just has that feeling. It's very rare to see pictures like this, which would make the viewer interested more. Flandre holding Meiling's head, when Flandre is way more powerful? The scenery, everything, just makes it fascinating. Most pictures i've seen (like the picture you posted for example) are based on what has happened in touhou itself, while this picture has it's own unique feeling which has not happened in touhou. That's why I like this. [ It's hard to explain, sorry if it's rather hard to understand why i like this ]
I've never made any tutorial, because I still have little experience in drawing. Also, my English isn't perfect. Of course, I can try to make a tutorial and write about the instruments I use, if you wish.