Close Market Order when current close price is smaller than the lowest close from the previous 10 bars

Hello forum, good day.

I´m working on a Market Orders EA that may open only one order at a time but there may be several open orders during the day. Up to what I have, several orders remain open, but I´m having a bit of trouble on closing each order separately when certain criteria is met; I need to close an order if the current close price is less than or equal to the lowest close from a series of 10 past bars from which an order was opened. This is what I came up with so far: 

double LowestClose = ( Low[iLowest( NULL, 0, MODE_CLOSE, 10, 0 )] );

if ( Close[0] <= LowestClose )
  {
    total = OrdersTotal();

    for ( int i = total - 1; i >= 0; i-- )
      {
        int select = OrderSelect( i, SELECT_BY_POS ),
        type       = OrderType();

        int result = 0;

        if ( !select ) continue;
        if ( OrderSymbol() != Symbol() ) continue;
        if ( OrderMagicNumber() != MagicNumber ) continue;

        switch( type )
          {
            case OP_BUY:  result = OrderClose( OrderTicket(), OrderLots(), MarketInfo(OrderSymbol(), MODE_BID), Slippage, Green );
              break;

            case OP_SELL: result = OrderClose( OrderTicket(), OrderLots(), MarketInfo(OrderSymbol(), MODE_ASK), Slippage, Red );
              break;
          }

        if ( result == false )
          {
            Alert("Order #", OrderTicket(), " failed to close. Error: ", GetLastError(), ".");
            Sleep(1000);
          }
      }
  }

Is this the correct way to close a market order, or how would it be a better way to do it? Help will be much appreciated. 

Best regards and thank you,

codeMolecules