Neon light has a pretty narrow and spiky spectrum so it's basically impossible to tell from that shot if your process is OK because the green- and blue-sensitive dyes were probably not exposed at all. You certainly couldn't tell if there was crossover or anything subtle like that.

If you want to evaluate whether your process is working, you need a range of identifiable colours in the test scene and a fairly full range of greys from very-dark to nearly-white. The usual answer is a Gretag-Macbeth chart, or you can just use your hand (for skintones) and a handful of primary-coloured and white plastic things. I went with my hand, a blue plastic bottle, can of coke and a box of HP5+ to get the primary colours, range of greys and skintones. Light it with a flash if you have one, otherwise direct sunlight.

There's a C41-scan article in my FAQ (link in signature), which may or may not help you...