Flower #1:Petals are in pale pink color. Heart-shaped on top. The close-up of the flowers is also shown on TOP LEFT. Flower #2: Shrub. Petals are in light purple color. Has whorled leaves. Leaves are firm. Flower #3: Yellow petals that are somewhat cup-like in shape. Flower #4: Also yellow in color. Has three inner petals, and not too sure if surrounding them are bracts(?) or sepals..but they are thick and yellow as well. Leaves are thin, long and parallel-veined.
1. Dicentra. Possibly Dicentra exima. http://commons.wikimedia.org/wiki/File:Dicentra_eximia0.jpg 2. Rhododendron sp or named cultivar. Such as... http://www.imageflora.com/image/rhododendron-russatum-deep-purple-blue-flowers-in-early-spring 3. Oenothera sp. http://en.wikipedia.org/wiki/Oenothera 4. Looks like Freesia. https://www.google.co.uk/search?q=f...OM0AWX_4CwCg&ved=0CAcQ_AUoAQ&biw=1536&bih=735