How do you take all the Pokemon signs on Pokemon Snap?

I really like figuring it out for myself as a kid, but some are VERY hard to find. You will need Apples, pesterballs and the Pokeflute to do this.

Level 1. As you start the level, look to your left. There is a strange rock

formation that from a certain view looks like a Kingler.

Level 2. To do this you have to get Zapdos out of its egg. Use Apples to get the Pikachu close to the egg and then use your Pokeflute to make Pikachu use it's Thunder attack to break the egg open. Zapdos will now fly away and use it electricity to power a projector at the end of the room where the electabuzz are. It is on the right side of the room and looks like a Pinsir.

Level 3. This one you have to make yourself. When you start the level, you will see a volcano to your left, throw a pestball in it at the right time and then take a picture of the purple smoke coming out of it. If you timed it right, the smoke should look like a Koffing.

Level 4. This one is kind of tricky to find, but easy to get. On the right side about halfway into the level you will see a Vileplume sleeping, use your Pokeflute and the Vilplume wakes up. When it is awake, it won't spray gas anymore and right above it you can see a tree that looks a lot like a Cubone which was covered by the gas before.

Level 5. This one is fairly easy, on your way through the cave you will come across some sparkling crystals in the distance on your left side if I remember correctly. Take a picture of them and when you look at them afterwards, you will see that they actually make a picture of Mewtwo!

Level 6. Really?! You couldn't see it?! Its the size of a mountain for gods sake!