your pieces look well cut and sized correctly to each other. if you are pleased with the arrangement of colors, then go fer it, dude. :P
all quilters need a few basic tools: good ruler; sharp cutter; good mat; needles; thread; seam ripper (at least i do :lol: ); scissors; tweezers; and a container for scraps.
please take note, henry. self-doubt is nowhere on that list. your number one most important tool? faith in yourself. :P