Reddit mentions of Canari Cyclewear Women's Pro Tour Jacket, Killer Yellow, Medium

What kind of light(s) you need depends greatly on where you'll be riding and how much you need the light to see vs being seen.

I have the exact same headlight you do and it's perfect for my needs. I commute year round (which means well after sunset for several months), but only for a few miles, mostly on side or slower roads, and there are streetlights for my entire route. I use the steady + blink mode to make sure I am noticed but also have my own illumination. If I were to regularly bike on busier streets or on paths that aren't illuminated, I might feel safer with something brighter.

However, being able to see things is only a small part of biking at night. Your greatest danger will be from cars who don't see you, and the more you can do about that, the better. At minimum, you absolutely want a good red blinky (or two) facing behind you. Additionally, I also have a "killer yellow" blindingly bright cycling jacket (that also makes a fantastic windblock), reflective bike strips for my wheels, leg bands for my pants, various other reflective stuff on my bike, and EL wire for when I'm doing longer night rides.

There's a ton of LED technology out there that can make lighting up easy, fun, and not too expensive.