When I suggested the "for more information" I meant it regarding the details of whether someone can find out their blood type, whether they are allowed to donate blood if they have been travelling or if they can still donate blood if they have a problem, or if they have any queries about being scared and what happens in the process. It can help to give people a number to call for more information.
2-On the blood donation one, change color to any thing but the color of blood.
Make it look like hmmmmm
U know in a bank's commercial they don't actually show the money but they show prosperity.
Same way, get you message across without telling people that they will be "bleeding" in order to give blood.
Show some some recovering "healty" kids etc in like hospital garden... or sitting with the family etc..
Ps:You have real good designing sense.Don't give it up.