Nice dabs! If I had a lot of keif, that would be one way to make it into dabs. I don't smoke regularly nowadays, and find normal rosin pretty smoky for my indoor needs. But that stuff's got almost no chlorophyll because you started with keif instead of bud. Shows you that the main determinant in dab quality is starting material, not method. Always start with really good high end bud (or keif if you can get it).
RE: Pressing Kief