Decisions, decisions....

Yesterday I made 18 more blocks. Now it is decision time. How big do I want this to be? Right now it is 64" square. If I want it to be twin bed size (64" x 96") it would need 4 more rows or 32 more blocks. If I add 2 more rows and make it 80" long it is too short for a bed, but pretty large for a throw size. I have enough strips already sewn for 4 patches for 2 more rows. Another decision I need to make: do I leave it just random the way the colors are placed, or do I play with the blocks and see if I want a. light in the center, b. sky at top, stream at bottom, with green between, c. each color in its own area? Now while I wait to make my decision, should I start a new quilt???? I already know what the next one is going to be.