The term "velocity vector" (vv) refers to a symbol on a display, usually a head-up display, that indicates where the aeroplane is going as opposed to where it's pointing. You can consider it to be the end of an arrow which is aligned with the velocity of the airplane where that velocity hits whatever is in front of it.
If the vv is "painted" on the ground it doesn't matter that your nose is 25 degrees above the horizon - you're going to hit the ground unless you add some energy from somewhere(!). Equally if the VV is holding stable just beyond the piano keys, and t horizontal and vertical velocities are at the preferred values, then you're approach is probably good and you just need to remember to flare [or not, depending on type - consult you owners' handbook].
PDR