Im want to uses one color transperancy on so many sprites as possible to save bandwidth on drawing. That could not been avoid on tiles anyway, due some tiles did require transparency (like water, which have been changed after the screenshot). Rest did not use it at all and all used one color transparency.
All spritesheets im have should been double up in size before drawing, so im eventuelly can scaling them down and can use retina graphics. Also that whay im uses transparency on sprites is really a cheat, due im draw them twice, which im might or not might remove. its depend on the sprites its self.
Yes as im wrote, the ground tiled would been toned down which we are aware of and eventuelly have less of them. Thinks it's next thing Kasper (the bg/tiles artist) will do. They not final, but the colors is (except the front bush, which will changes to same style as plants of course).
Also its nice ian offer help too and I'm could post sprite sheet here too as well. Im do wait a answear from Erico first, as im just want sprites is in one style, howover there is other area (like sprites as well menus etc). I'm talk to him later. Thanks for all offers.