As for feeders -see if you can get frozen "Sand eels". My Loisellei like them and they are far less likely to spread disease than live feeders, more nutritious than goldfish, you can easily store them, and they are lot cheaper! Also start a red worm culture - dirt cheap (pun intended), and every fish I've owned loves them. Finally, bulk meal worms on the internet. You can start up an ongoing culture and give your fish both the larva and adult beetles - great treat, adds variety, and it is fun to watch the feeding frenzing over a batch of beetles.
As for the pics, try moving the aquarium lights forward so that you get more light reflecting off the fish instead of partially coming from behind and shadowing the fish (cameras are more sensitive to this effect than the Mark V eyeball).