A different approach to an anachronistic armoured cruiser

This is my attempt at an anachronistic design using HMS Drake dimensions and displacement. Probably simply due to newer technology and date, the result is much more capable. I settled for a 6in armour basis. The armament is 8-9.2in guns in superfiring turrets and 12-4in QF guns in turrets amidships. The maximum speed is 27 knots. This is the Springsharp report:

HMS Drake, Great Britain Armoured Cruiser laid down 1910

Displacement:
 12,204 t light; 12,786 t standard; 14,150 t normal; 15,241 t full load

Dimensions: Length overall / water x beam x draught
 537.39 ft / 533.50 ft x 71.33 ft x 26.00 ft (normal load)
 163.80 m / 162.61 m x 21.74 m  x 7.92 m

Armament:
      8 - 9.20" / 234 mm guns (4x2 guns), 389.34lbs / 176.60kg shells, 1910 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 4.00" / 102 mm guns (6x2 guns), 32.00lbs / 14.51kg shells, 1910 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships
 Weight of broadside 3,499 lbs / 1,587 kg
 Shells per gun, main battery: 150

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 6.00" / 152 mm 380.00 ft / 115.82 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 110 % of normal length

   - Torpedo Bulkhead:
  1.00" / 25 mm 380.00 ft / 115.82 m 25.00 ft / 7.62 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 6.00" / 152 mm 4.00" / 102 mm  6.00" / 152 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armour deck: 2.50" / 64 mm, Conning tower: 6.00" / 152 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 2 shafts, 57,171 shp / 42,650 Kw = 27.00 kts
 Range 5,200nm at 15.00 kts
 Bunker at max displacement = 2,454 tons

Complement:
 648 - 843

Cost:
 £1.125 million / $4.501 million

Distribution of weights at normal displacement:
 Armament: 437 tons, 3.1 %
 Armour: 4,271 tons, 30.2 %
    - Belts: 1,627 tons, 11.5 %
    - Torpedo bulkhead: 352 tons, 2.5 %
    - Armament: 1,044 tons, 7.4 %
    - Armour Deck: 1,173 tons, 8.3 %
    - Conning Tower: 76 tons, 0.5 %
 Machinery: 2,362 tons, 16.7 %
 Hull, fittings & equipment: 5,133 tons, 36.3 %
 Fuel, ammunition & stores: 1,946 tons, 13.8 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   18,900 lbs / 8,573 Kg = 48.5 x 9.2 " / 234 mm shells or 3.1 torpedoes
 Stability (Unstable if below 1.00): 1.08
 Metacentric height 3.5 ft / 1.1 m
 Roll period: 16.0 seconds
 Steadiness - As gun platform (Average = 50 %): 61 %
   - Recoil effect (Restricted arc if above 1.00): 0.56
 Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.501
 Length to Beam Ratio: 7.48 : 1
 'Natural speed' for length: 23.10 kts
 Power going to wave formation at top speed: 54 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 4.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  27.00 ft / 8.23 m
    - Forecastle (20 %): 20.00 ft / 6.10 m
    - Mid (50 %):  20.00 ft / 6.10 m
    - Quarterdeck (15 %): 20.00 ft / 6.10 m
    - Stern:  20.00 ft / 6.10 m
    - Average freeboard: 20.56 ft / 6.27 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 109.4 %
  - Above water (accommodation/working, high = better): 149.1 %
 Waterplane Area: 25,367 Square feet or 2,357 Square metres
 Displacement factor (Displacement / loading): 113 %
 Structure weight / hull surface area: 128 lbs/sq ft or 624 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.93
  - Longitudinal: 1.83
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily