Make fondant water lily. For each treat, tint a 1 and 1/8 in. fondant ball rose/violet combination (for rose), a 3/8 in. ball lemon yellow/golden yellow combination (for yellow) and 1 oz. kelly green. Knead 1/8 teaspoon Gum-Tex into rose fondant.
Use 9 in. fondant roller to roll out rose fondant 1/32 in. thick. Use small daisy cutter from gum paste flower cutter set and rose fondant to cut four sets of petals for each lily. Place one petal set on thin shaping foam; store remaining petals under storage board flap until needed. Use large veining tool from 10-pc. gum paste/fondant tool set to score vein lines on petals. Let dry 1 hour in 2 1/2 in. flower forming cup dusted with cornstarch. Repeat for remaining petals.
Prepare thinned fondant adhesive following recipe directions. Use brush and thinned fondant adhesive to attach four petal sets together in 3 in. flower forming cup.
For flower centers, press a 3/8 in. ball of yellow fondant in dogwood center cavity (#6) of flower impression mat. Use thinned fondant adhesive to attach center to flower. Let dry overnight.