The actual tweet from IDW reads as follows:
IDW wrote:@boxofficeartist presents The Most Detailed Drawing Ever of Transformers Trypticon! Get a behind-the-scenes look at the incredible skill that went into creating this astounding cover for Optimus Prime #14.
The tweet had a link to the video below which shows his process for drawing the Trypticon cover. We also included an other example of what his youtube channel can offer, which includes courses on drawing Transformers like Grimlock.
[youtube]geG5xD8oVk8[/youtube]
As for the claim that this is the most detailed Trypticon drawing out there, Studio Ox may want a word in (if this below is considered a drawing).