'Colours of Joy' by Payal Jain was a journey through fabrics, colours and style. Fabrics like sheer georgettes, rich crepes, luxurious satins and hand woven Jacquards have been used to give a very exciting look. This collection does have a travelers reflection which focuses on gypsy chic attained through casual richness, vibrant brights and bold prints which are classic, comprehensive, sophisticated and homogeneous as stated beautifully by Payal.
Please explain the emboldened parts to me.
Remember how he described it as a "journey"? He is again using the metaphor of "travelling", implying that you would normally have to travel (perhaps like a gypsy) to various places to see all the types of fabrics and colours that are in the collection. "Reflection" is hard to explain. I'd it means "aspect" here. The collection has the aspect of travelling/journeying. Or if one "reflected" (thought about) the collection, one would think of travelling.
"Homogenous" means all the same. It seems out of place here. He seems to be describing a heterogenous collection. Perhaps he means that they are uniformly elegant, classic, sophisticated, etc.
"as stated beautifully by Payal" could mean that Payal used some of those words in describing the collection; or that Payal has stated this visually through his collection.