We are thinking roundish frame with Sir Metalman enclosed but instead of wearing welding helmet has bowler hat. Thinking the idea of "caricature" Sir Metalman - like the Planters Peanut guy
Maybe not too much color - just accents.

Need these files:
AI - Master Vector File to edit/scale the content of logo through multiple artboards and layers
EPS - Vector file for large size printing like Signage, T-shirts, etc
PDF - Vector file for small size printing or paperwork like Business Card, Letterhead, etc
PNG - Transparent file used for website, social media etc
JPG - File same as PNG although not transparent

Great designer - made desired revisions - great to work with.