Style concepts presentation thru photoshop

Hi. We are into women's garments. We have a brand called Zele in which we design formals , casuals Indian as well as western wear. We are looking out for a professional who needs to be really neat & quick in using photoshop to present style concepts. Well versed with CDR will also help. I am attaching a file where a model is wearing long midi in yellow with wine color jacket which needs to be replaced with new fabrics / prints / colors. Yellow midi needs to be replaced with skyblue & wine jacket needs to be replaced with indigo.