@solarheart21 Sexy work! 
We have kept the usual forum standard of file sizes of 2048kb for attachments, but we can look into upping that if the community requests it. However, short term solution, you can actually embed these twitter images into a forum post!
First, on Twitter, right click on the image and copy URL. You’ll get something long like this.
https://pbs.twimg.com/media/ENHhB_eU4AIkMyL?format=jpg&name=4096x4096
On the forum, use the “Picture” tags accessible when replying or making a new post. The button looks like a generic image/photo icon. Paste your URL in the highlighted “image url” field, and viola!