I just bought an Astrhori 10mm f8 (pic related on a a6400) and it's my first fish eye. It's a cheap toy lens with tons of flaws (first of all the the "focus ring") but it's kinda fun to use. I like the barrel distortion so much and I'm wondering if it could be worthy to go for the 7artisans 7.5mm.

I'm a huge fan of wide angles, but I always tried to minimize distortion for architectural photography. I'm the kind of guy that would like to try a tilt shift lens but I'm appreciating the composition fredom and dynamicity given by this crappy lense. Composing is quite difficult at first and in a couple of hour of shooting I still had to produce a satisfinf picture.

Can you give me sone tips?