COMPOSITION
Though your shot is a nice one of plants, I have a hard time finding a point of focus. Perhaps if you were even closer, and focused on just one of the leaves or changed the perspective somewhat.
TECHNIQUE
Your picture looks a bit grainy to me, and I see that your ISO is at 400. If that is adjustable, I would get that down lower, and use a slower shutter to allow in more light. The red and green make an nice contrast though, and overall, I think this is a pleasant picture. A crisper, clearer focus would have really made this image *pop* I think.
OVERALL EFFECT
Like some of the others, I have a difficult time seeing how this met the "waldo" challenge. Maybe I am totally crazy, but on dpc, obvious is better. Is the gray spot on the leaf significant?? If so, maybe it should be larger in the picture. My sincerest apologies if I am missing something obvious here.
No hidden person, therefore, does not meet the challenge. I think I can see something in the background in the top right quadrant, but there's not enough detail for me to identify it.
I've just spent some time looking through your photo, and I can't see anyone. Sorry. I'm wondering if you meant to submit this to the Perspective challenge and picked the wrong one by mistake or whether I need glasses. Unfortunately, that means the photo does not meet the challenge in my opinion. As for the photo itself, I like the red contrasting with the green, and your focus and sharpness if good, too. There isn't enough of a central focal point although one of the buds (the one close to the middle of the photo) could be it. Maybe isolating less leaves and one of those buds would've made this less busy and allowed the viewer to figure out easier what to focus on.
Is that Waldo hiding in the background? I can't make him out to clearly but I'll give you the benefit of the doubt, it looks like a kind of statue to me. Anyway nice greens here and the blurred effect in the background really helps to hide Waldo. Good job!