Can someone check my Fischer Projections?

[JessG]

Homework Statement

1. R, 2-Bromo-2-Chlorobutane
2. S, NH2-CH-C2H5
...............|
..............OH
................................O
................................||
3. R,R and R,S of CHDCl-C-CHDNH2

Homework Equations

...knowledge of fischer projections? I can post the video-tutorial i attempted to follow, if needed.

The Attempt at a Solution

1.
.......CH3
..Cl--+--Br
.......CH2CH3
2.
.......H
..OH-+-NH2
.......CH2CH3
3. R,R
.......H
NH2-+--D
.......|=O
....D-+-Cl
.......H
R,S
.......H
NH2-+--D
.......|=O
...Cl-+-D
.......H

Homework Statement

Homework Equations

The Attempt at a Solution

 

[JessG]

I can draw them up on paint too.. if that's easier to decipher.