Looking real nice, especially the first one.
Has heat been a problem? Are you under the stairs or in the attic? or...
Are your reflectors the ones for car windows? kinda look like that. If so those and emergancy blankets reflect a lot of the heat energy of the light but less of the light usable by the plants than some of the other choices. I would still say it's better than nothing but if heat was an issue i might do a test where I took them out for a day or two to see if there was a difference. Just a thought...
Cheers
SilverSerf