Zach, How Does Your Garden Grow? [PHOTOS]

So, it's close to Memorial Day, and everyone I talk to says that's the time to put plants into your garden. Well, I got to it a little early (planted last weekend). I should start out by saying that this is my first attempt at gardening--so, I have no idea what I'm doing. I started the plants a few months ago, so I didn't actually buy already-grown plants. All seemed fine. Then, I put them in the ground. Now, I need gardening advice! My garden has tomatoes, cucumbers, peppers, lettuce, broccoli and cauliflower. Check out the pictures and let me know what I should do to keep my first attempt at a garden alive.