Graphics for instagram account

I need a graphic designer who can make a graphics for post on instagram. I enclose some of my photos of cakes, which I like to post on instagram. I need to make from that photos graphics - the cakes from photos should be in the centre of the graphic. I need at least 12 graphics made from the attached photos. I would like to create a consistent account on instagram so thet each post fit together - whole instagram account should make one piece. I attach also the example of instagram account which I inspired from. The background of the graphic should correspond with the cake taste so it should be chocolate (milk, dark, white) or other sweets, fruits or coffee.

What's more, I need an editable version of graphics and copyright of all the graphics must be transformed after finishing the project.