The originality and mashup is very weak on Unidentified Flying Ookami, as it seems like the card genre/theme is only there in name: it’s a single powerup. I’d say this is the bare minimum to satisfy the mashup requirement. While the design of the character is magical girl-like, there doesn’t seem to be much of any emotion, character or story to make her feel like one.
Gameplay-wise, it’s similar to Touhou games, which is quite enjoyable. For the hitbox, it seems that the yellow dot is only applied for bullets; whereas collision with enemies is based on the normal character/graze hitbox, which is too big and can kill the player even if the sprites are not really touching. The movement speed during focus is a bit too fast for my liking which makes it difficult to perform delicate movements. There is no background unlike as shown in the screenshots, just a blank white background, but I suppose that may be better as the one in the screenshot looks quite distracting.
Overall, I did have some fun beating the boss, but it really needs something unique of its own to truly shine, or at the very least the shoot-em-up/bullet hell mechanics and patterns needs to be more refined. Keep it up!