dear the pic u showing above is of ultimate wax not polish, wax and polish 2 differnt things, wax dont have any paint cutting ability where as polish having micro polishing fillers and oils, polish very lightly cut the very light surface of clear coat means remove swirls and light secratches and its polishing/ glazing oils penitrate into skin to give warm and alive3 feelings in paint , good quality polish like meguiars ultimate polish dont have harsh cutting , its very slightly remove very minor swirls and than filling agents fill in serious imperfections ( means hide them instead of cutting ) , also clean the paint surface to prepare surface for further treatments like wax or sealant.
here is the pic which i am talking of megs ultimate polish, best results can drive from da polisher however u can also apply by hands , directions are mentioned on back of product , u have to use applicator pad and work on 2x2 feet area at a time on clean and cool surface , give through massage with medium presure ( not much just light to medium ) and massage until polish start drying to haze, than wipe off with clean microfiber cloth and go on to next... until u done whole car than apply mothers california gold wax and topup with mothers top coat
remmber plosih is not to use in routine, its a once a while use product and than u have to maintain car surface with good wax as u already have now.
mother california wax, apply with little damp applicator pad and do one pannel at a time as once its fully dry than hell difficult to buff out so do one pannel at a time.
for mothers top coat, u can apply on whole one pannel at a time, no need for any pressure, just lightly massage it and also dont need for many wipes to apply, its lsp product so no pressure no through massage required.
the picture u showed is of ultimate wax its very good synthetic wax from meguiars , however in paste form its last longer than liquied one. u dont need this as u already have mothers advance top coat as thats also for same purpose.
if u face problem to find ultimate polish than try mothers hand glaze its easily avilable in pakistan , glaze also clean the paint, fills the light swirls ( hide ), both ultimate polish and mother hand glaze will make ur car skin "chiti doodh " 
