Storage (wall brackets) help pleasee urgent!?

The brackets look fine. The main thing is to get a secure fixing into the wall. If it is a solid (brick or blockwork) wall use plastic wall plugs and 2" screws. The length of the screw gives the secure fix. If it is a plasterboard wall (tap it and it will sound hollow) you need fixings specifically for plasterboard and the recommended, shorter screws. All available at DIY stores.