Looks great! I love the end table look which people probably will do a double take to see it's a nice looking humidor
For something that size I wouldn't worry with an active humidification system (oasis, etc). Honestly, if you have enough beads in there, it should keep it stable enough despite the season. Your temperature might fluctuate, especially being near what looks to be a sliding glass door or full length window, but the RH should be pretty stable. Might want to go up from 1/2 lb of beads to 1 - 1 1/2 lbs of beads. The two vendors I know of both have calculators on their site on how much you need for your size humidor.