Not going to lie to you mate, you need a lot of help and need to test out some tutorials. As people have said 2 & 3 are your best two. Also, try a different text style, and try working with a smaller scale sig, this makes things alot easier because you have less space to cover & to worry about. You're brushing is good though, and maybe try to learn to do some multicolour on them.
1. 3/10
2. 4/10
3. 4/10
4. 3/10
Keep trying, you WILL get better
Im glad to see you getting into graphics, we need more members on this site who will post in this area, its starting to die and its one of my favourite sections