No whites. White washes everything out, even when it's put along side vibrant colour. Do it in big splashes of colour but add no white because then all you'll see is white and green. And unless you have some sensational ever green garden with hedges and deep dark greens bouncing off the lighter ones of the tulips, all you're going to see is a blah of white on green, which plays a huge disappearing act in the spring. After looking at white snow all winter, do you really want to wash your garden out with white?
Don't bother soldiering your bulbs. Dump those suckers in. I take great satisfaction in knowing I angrily dumped the box into the ground and still had them all come up the same direction. The bulbs will right themselves. They almost never ever need help to grow. A plant will find the surface.
In another subject of bulbs, Daffodils are a nice bright contrast against your pinks (ick, not against reds, bleh) AND DON'T USE THE WHITE ONES. The squirrels don't like them and leave them alone so if you have a huge problem with the animals getting happy, you're either not digging them deep enough or leaving traces of bulbs on the surface. That's like marking treasure with a massive X. DIG HERE FOR FOOD.
Source your bulbs. Buy from a garden center. Generally, they sell better quality bulbs but you can buy online in bulk. Bulk is good, bigger is better, especially late in the season, where you're pushing November and the garden centers need to get rid of their bulbs. They often put them on sale once they start pushing into the Christmas junk/tree push and once that starts, the bulbs quickly go on sale. Don't buy Alliums. unless you couple them with some interesting early spring plants, they're generally over priced bulbs that have a real threat of not coming up at all.
Have one cool looking bulb in your garden. Plant it in one cluster amongst your generics. These stand out more if they're around more solid colours. If you put more of a mess of different colours, your eye visually cannot pick out the coolness of these bulbs and they get lost in the masses. Also, (lots of don'ts here), don't go beyond three colours. Do things in odd numbers in the garden. Threes are a good bunch to plant in. Threes or groups of fives (I'm talking holes here). And make your holes interesting. Make them long, angle them. Make three diagonal holes that are long, space them up but make them parallel. Have your holes curb around your garden, accent the shape of the garden they are sitting in. There's nothing more boring than having a circular bulb pile come up in the garden. Be interesting, be different. Get creative with your shovel and hole digging skills.
Take pictures. Choose your angles. Bulbs are incredibly boring to photograph and they almost always make the picture incredibly boring because their colours are so vibrant, that you can't pick up anything like high lights and shadow. So get down in the dirt, point your camera angle up and make the sun an aid in high lighting that colour by being able to see through it. Bounce it against the background of your blue skies, accenting the bulb colour in a good way to give it a nice back drop. There's nothing worse than (like above picture) the house is the backdrop. Stick to these easy suggestions and you'll have big bang for your bucks. Bulbs like this stay for a long time and keep on giving, long after they're gone. Oh, and on a final note, cut those stems once the peddles drop. No point in seeing those ugly stems anymore. Spring is offically over. bring on the summer.