Only you see your snake in different lighting,etc.

From YOUR pictures, I would say, "just" a Lesser (its a gorgeous snake, btw)

But sometimes pictures can be deceiving with different light, etc.

Check out this video, you see the snake in good light, moving, etc. This is a Lesser Fire. Try to make some Daylight pictures, or anything with a bright white light.

https://www.youtube.com/watch?v=E1SFiwOifeY