Anything wrong with Dividend Stocks and Emerging Markets? [Portfolio critique 26 y/o]

Retirement Holdings at Vanguard

• 40% Dividend Equity Mutual Funds (trad IRA)

• 20% Total Stock Market Index (Roth)

• 20% Intl Developed Markets Index (Roth)

• 15% Emerging Markets Index (Roth)

• 5% Total Bond Index (Roth)

Is there any risk to holding so much in Dividend and Emerging Market Equity for the long term (retirement)? My goal is 100% equity, however I am holding a small amount of bonds now for "balance" with my overweight in EMs. Any feedback is welcome!