If you see"hyla" in a frog's name it's a treefrog. Here's an oldie but a goodie! Hint This is an adult. A pic of a juvenile would be much easier to id. Second hint: where this snake is found it's considered deadly, although it's completely non-venomous:
i have actually remember reading about it a while ago i'll see if i can look up and article on it.
here it is: the snake i was thinking of is Rhabdophis tigris, not the snake you posted but still interesting. the article is here, (at least one of them)