Nice.
First image(A) without arcade fx : it looks like actual mobiles game style. What i see as the equivalent to pixelart in the 90's.
Second image(B) with arcade fx : Distribution 's uniformity of the fx on screen's surface is kind of dull. And there is too much fx. Maybe if you lower a bit opacity and curve slightly the live it can give a nice fx. I am not sure of it. Maybe you can search for other games using that kind of effect. I know last Doom has a film grain option with sharpening thing pretty sweet.