class exercise no.1

this is the class exercise did before and after lecture3


BEFORE

i just colored what i want that time without using any color plan
it may make the whole collection doesnt look "collection" at all


AFTER

this time, i hv used the aboved color scheme
it made me can follow a "plan" that make a collection more coherent


comparing these 2 collections, i like the previous one more
the 2nd one is coloring with the 6-box color scheme
i think it's a quite good method
but in this practice i didnt do well
the 6 boxes are actually not harmony
i must spend more time on the color plan next time