I tried several times to take a pic, but the flash from the camera ruins the picture every time... too much reflection from the FishFlash. If I try it without the flash, the pic is way too dark and it's impossible to tell the actual colors. If I can ever remember to take a daytime pic, I'll give it another go.

With regard to size, I would say bigger is better. You can catch fish without them (I have a friend who kicks a$$ fishing with no adornments beyond a prime brined bait), especially if you have 4 or 5 baits in the water stirring up a commotion to attract fish. But if you only have 1 or 2 baits in the water, the FishFlash adds a lot of extra attraction/commotion, and in my opinion, an extra measure of confidence. If you are gonna bother to tie one on, may as well make it a big one for maximum flash. Heck, I've even seen guys out there using tandem FishFlashes to stir 'em up.