Homework Help: Can someone check my Fischer Projections?

1. The problem statement, all variables and given/known data
1. R, 2-Bromo-2-Chlorobutane
2. S, NH2-CH-C2H5
...............|
..............OH
................................O
................................||
3. R,R and R,S of CHDCl-C-CHDNH2


2. Relevant equations

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

3. 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
1. The problem statement, all variables and given/known data



2. Relevant equations



3. The attempt at a solution

 

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