i Register
In some senses, picky is marked as informal, UK, colloquial. Watch for register when choosing this word.
adj
Fussy; particular; demanding to have things just right.
I am very picky about the way my kitchen is laid out.
Most of the pickiest children were actually in the middle weight group, though a few were underweight and a few were overweight.
Of food or a meal: consisting of various small items from which the diner can pick and choose.
picky bits
picky tea
noun
A picture.
And who knows, I might do a few pickies of you - fully clothed, needless to say.