I'm assuming 0009:HP gets set at the start of the common event? (Probably needs three lines to set it as a percentage, but..) You only need one common event, since you're using forking.

Also, you can just have it as Picture 1 for all three images - the only reason you'd use Picture 2 and Picture 3 is if you have more than one picture onscreen at the same time. And if you're exactly 75, none of your branches apply...

Here's a good structure:




Anyway, I'm wondering how your HP number is being calculated. Remember that there's no decimals, so if you're doing something like 95 divided by 100, then multiplying by 100 for the percentage, you're going to get zero. That would explain if you're getting stuck on the third "Oh no I'm going to die" image even at 95% HP.