Opinions and Constructive criticism needed??

Ok, so I am done setting up my grow room in a closet space of 6ft tall, 5 1/2 feet in length and about 1ft 9in in depth. I am growing 2 plants (hindu kush) at a time in 9 1/2in square pots under a 4ft 4 bulb T5 lamp, i also have 12 4foot T5 lights verticaly lining the whole room around. This is where my questions come into play.... For the Veg. stage i am using 2 6500K lights an 2 3000K lights in the T5. All 12 of the T5 light strips are also 6500K. For the flowering stage i am going to convert 4 of the T5 strip lights that are in all four corners of the walls to 2300K along with 4 other stips around the grow room. The remaining 4 strips I am going to keep the at 6500K. And for the T5 lamp i am going to have all 3000K lights. I also have all the walls in the room covered in mylar. Can somebody tell me or give me an educated guess if the light set up for the Flowering stage will give me a good yeild, after doing the math its more Lumens than a HPS but not quit the same light spectrum. Thank you and all criticim and opinions are appriciates.