Cut the cheese into bite sized chunks. Wash the fruit, plucking the grapes off of the vine or cutting them into small clusters of 4-5 grapes each.
On a large flat serving board, arrange a single layer to shape the tree. Start at the bottom and work your way up: Cheddar cheese, then green grapes, then colby-jack cheese, red grapes, gouda, green grapes, parmesan, and finally blackberries.
Once you have the initial shape, you can build up the tree by adding more layers of fruit and cheese.
Once you are happy with the shape, begin tucking in small sprigs or rosemary and parsley to fill out your tree. A star cracker would be a cute addition at the top if you can find them.
Amounts are approximate. You can use more or less of any ingredients, depending on your taste. Use any type of firm cheese you like. I just listed the ones I prefer. Same with the fruit - I think grapes work best because they don't leak juices or turn brown, but you can use mandarin orange slices, berries, apples (soak in lemon juice first), kiwi.