dezire,
You might want to look at practicing the circle of 5ths to help in the walking from one spot to the next.
The chords you gave would be used to get to the 251 of the key of C
your starting on the 6th which is A and you would end on the 2 which is D
then move on to the 5 which is G then on to the 1 which is C
Look at the walk as a way to get to your desired chord to do that you can start with the circle of 5ths that fall below the ending note or chord.
to add a slightly different fell to the rythm you can alternate the thumb and fingers used to play the chords the count would be like this
{one un and} {two oo and} {three ee and} four
one, and, two, and, three, and = fingers
un, oo, ee = thumb
the bass note would fall on the down beat to hit one two three four
the right hand would rock back and forth alternating thumb and fingers
this will fill in the space a little more rather than just playing on the down beat.
It will give you a tripplet feel to the playing breaking up the notes duration into three equal beats
so try this using your three starting chords and ending on C while playing each chord broken into triplets
A7,
G7/B(Bdim),
A7/Db(Dbdim),
Dm,
C/E,* (*starting here you can use the C pentatonic maj scale to sub for the chords)
Dm/F(F6),*
C/G,*
B/G,
G7,
Am,
Dm/B(Bdim)
C