If its not fitting u enough please try the full list.
Before getting on and searching the entire web for graphics and spritesheets you should get an idea in your mind what do u want to make and how do u want to impact your gamers who are going to play your game
You can’t always relay on free databases and resources sometimes you need just to make it right for your own game and should sacrifice some dollars for the cause if you really need it to stand out from others
YOU DONT HAVE TO MAKE IT PERFECT! – you should always make it look good but if you wonder and polish the graphics too much it could never end and might burn you good time and a lot of money
Everything can be fixed and polished afterwards when the game is done(!!)