Help with army building

My current Ork Army mostly consists of models I like, however I do want it to perform at least averagely. This is my list currently: Meine Figuren (1500 points)

Orks Strike Force (2000 points) Green Tide

CHARACTERS

Painboy (80 points) • 1x Power klaw 1x ’Urty syringe

Warboss (65 points) • Warlord • 1x Attack squig 1x Kombi-weapon 1x Power klaw 1x Twin sluggas

Weirdboy (65 points) • 1x Weirdboy staff 1x ’Eadbanger

BATTLELINE

Beast Snagga Boyz (105 points) • 9x Beast Snagga Boy • 9x Choppa 9x Slugga • 1x Beast Snagga Nob • 1x Power snappa 1x Slugga

Boyz (170 points) • 19x Boy • 2x Big shoota 17x Choppa 2x Close combat weapon 17x Slugga • 1x Boss Nob • 1x Power klaw 1x Slugga

Boyz (85 points) • 9x Boy • 8x Choppa 1x Close combat weapon 1x Rokkit launcha 8x Slugga • 1x Boss Nob • 1x Power klaw 1x Slugga

OTHER DATASHEETS

Deff Dread (130 points) • 3x Dread klaw 1x Rokkit launcha 1x Stompy feet

Gorkanaut (280 points) • 1x Deffstorm mega-shoota 1x Klaw of Gork 2x Rokkit launcha 1x Skorcha 2x Twin big shoota

Killa Kans (125 points) • 3x Killa Kan • 3x Kan klaw 3x Rokkit launcha

Lootas (50 points) • 1x Spanner • 1x Close combat weapon 1x Kustom mega-blasta • 4x Loota • 4x Close combat weapon 4x Deffgun

Nobz (210 points) • 1x Boss Nob • 1x Power klaw 1x Slugga • 9x Nob • 9x Power klaw 9x Slugga

Stormboyz (65 points) • 4x Stormboy • 4x Choppa 4x Slugga • 1x Boss Nob • 1x Power klaw 1x Slugga

Warbikers (70 points) • 2x Warbiker • 2x Choppa 2x Close combat weapon 2x Twin dakkagun • 1x Boss Nob on Warbike • 1x Close combat weapon 1x Power klaw 1x Twin dakkagun

Is there anything I need to change or add for my army to work on the table?