CTRL + T - Transform Tool (to modify the size of an image)
V - Move Tool (to move objects around)
CTRL + J - Create a new layer and copy the selection
CTRL + D - Deselect selection
CTRL + Shift + N - Invert Selection
T - Text Tool (create text)
2. Octopus
I used the quick selection tool (W) and selected the octopus. I then copied the selection (CTRL + C) and created a new document and pasted it in there to make it easier. I then used the eraser tool (E) and fine tuned the edges and stuff to make it look pretty smooth.
