The two Amino Acids drawn are;
1) Proline (Red)
2) Histidine (Blue)
The Carboxylic Groups are encircled in Yellow Sphere.
The Amino Groups are encircled in Orange Spheres.
The Alpha carbons are encircled in Pink spheres.
The water molecule evolved is in corresponding colors of its parent molecules.
The peptide bond formed is colored by Green color.