Lex's mid-week sprint updates: Brought to you by Lex

Things I have done:
- City final colours and concept
- Oil rig and refinery research
- Oil rig and refinery sketches
- Oil rig finalised concept
- Oil refinery finalised concept

Things I'm workin' on:
- Oil rig final colours
- Oil refinery final colours

Things to begin for this week:
- Solar thermal research
- Solar thermal sketch
- Solar thermal finalised concept
- Solar thermal final colours