Louise the next block, block 3 will be released on the 24th .. You are correct .. Im just ahead of myself!
And yes for the 5x5 grid, you need FIVE blocks of Block 1 and FOUR of block 2 ... Block 3 will be another FIVE blocks!
I think Im going to add a thin sashing between the blocks in an effort to keep all those lovely points separate so will be cutting the Long strips and the borders this coming month ... If you add sashing you will also be able to QAYG if you like !!