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On this walkthrough I wont tell you what to do for the Pokémon but I will tell you where the signs areand what are the best things to do to get more points

The Signs

Kingler Rock

This sign is found at the beginning of the Beach right after Pikachu. You'll have to turn the Zero-One around, almost backwards, to get this shot.

Pinsir Shadow

This sign is found in the Tunnel. First you need Zapdos to turn on the Power for you. At the end of the next room you'll see this shadow off to the right side.

Koffing Smoke

This sign is found at the Volcano. Right at the beginning you'll see a crater that lets out purple smoke to your left. Throw a Pester Ball into it to make this sign appear.

Cubone Tree

This sign is found along the River. Not that hard to get, it's right behind the Vileplume

Mewtwo Constellation

This sign is found in the Cave. Right before you enter room where Jynx and Articuno are, if you look to the left you'll see some shining stars. Take a picture and it will develop into this.

Mt. Dugtrio

This sign is found in the Valley. If you can't find this one then you must have problems.