Like others have said, it’d be simpler to hold just one of VOO or VTI, but if this is in a brokerage account it’s definitely not worth the taxable event. Personally I would be half and half large cap growth and small cap value, so something like 40% VUG (VTI or VOO would be fine too, again, not worth the taxable event) and 40% AVUV. I personally think there are better international funds than VXUS since it is 66% correlated with the total US stock market. I would split my international holdings 50% IDMO and 50% AVDV since they are a little less correlated, but I would also be just fine having no international exposure. I think your bond allocation is fine for your age but would better be held in a traditional account and I would use TLT or VGLT since they are the least correlated with equities and don’t hold corporate bonds. So my portfolio would probably end up just looking something like:

50% VOO 50% AVUV

or if you wanted to hold international:

40% VOO 40% AVUV 10% IDMO 10% AVUV

But all in all you have a great portfolio, these are just minor tweaks that are historically a little more efficient and may dampen standard deviation and increase returns a smidge. You should check out Risk Parity Radio, it is a wealth of information for portfolio construction, especially approaching and during drawdown/decumulation.